chore: rebrand Nix to Lix when it makes sense

Here's my guide so far:

$ rg '((?!(recursive).*) Nix
(?!(daemon|store|expression|Rocks!|Packages|language|derivation|archive|account|user|sandbox|flake).*))'
-g '!doc/' --pcre2

All items from this query have been tackled. For the documentation side:
that's for https://git.lix.systems/lix-project/lix/issues/162.

Additionally, all remaining references to github.com/NixOS/nix which
were not relevant were also replaced.

Fixes: https://git.lix.systems/lix-project/lix/issues/148.
Fixes: https://git.lix.systems/lix-project/lix/issues/162.
Change-Id: Ib3451fae5cb8ab8cd9ac9e4e4551284ee6794545
Signed-off-by: Raito Bezarius <raito@lix.systems>

52 files changed, 131 insertions, 127 deletions

diff --git a/README.md b/README.md
index 814fceac8..609dd7199 100644
--- a/README.md
+++ b/README.md
@@ -6,14 +6,14 @@ Read more about us at https://lix.systems.
 
 ## Installation
 
-On Linux and macOS the easiest way to install Nix is to run the following shell command
+On Linux and macOS the easiest way to install Lix is to run the following shell command
 (as a user other than root):
 
 ```console
 $ curl -sSf -L https://install.lix.systems/lix | sh -s -- install
 ```
 
-For systems that **already have Nix installed**, such as NixOS systems, read our [install page](https://lix.systems/install)
+For systems that **already have a Nix implementation installed**, such as NixOS systems, read our [install page](https://lix.systems/install)
 
 ## Building And Developing
 
diff --git a/doc/manual/src/contributing/hacking.md b/doc/manual/src/contributing/hacking.md
index a73d672d4..781aa75c1 100644
--- a/doc/manual/src/contributing/hacking.md
+++ b/doc/manual/src/contributing/hacking.md
@@ -137,7 +137,7 @@ You can also build Lix for one of the [supported platforms](#platforms).
 
 Lix can be built for various platforms, as specified in [`flake.nix`]:
 
-[`flake.nix`]: https://github.com/nixos/nix/blob/master/flake.nix
+[`flake.nix`]: https://git.lix.systems/lix-project/lix/src/branch/main/flake.nix
 
 - `x86_64-linux`
 - `x86_64-darwin`
diff --git a/doc/manual/src/installation/obtaining-source.md b/doc/manual/src/installation/obtaining-source.md
index da05d243d..9c88942c3 100644
--- a/doc/manual/src/installation/obtaining-source.md
+++ b/doc/manual/src/installation/obtaining-source.md
@@ -1,13 +1,13 @@
 # Obtaining the Source
 
-The most recent sources of Nix can be obtained from its [Git
-repository](https://github.com/NixOS/nix). For example, the following
+The most recent sources of Lix can be obtained from its [Git
+repository](https://git.lix.systems/lix-project/lix). For example, the following
 command will check out the latest revision into a directory called
 `nix`:
 
 ```console
-$ git clone https://github.com/NixOS/nix
+$ git clone https://git.lix.systems/lix-project/lix
 ```
 
 Likewise, specific releases can be obtained from the
-[tags](https://github.com/NixOS/nix/tags) of the repository.
+[tags](https://git.lix.systems/lix-project/lix/tags) of the repository.
diff --git a/doc/manual/src/quick-start.md b/doc/manual/src/quick-start.md
index 862eed432..bcca9857d 100644
--- a/doc/manual/src/quick-start.md
+++ b/doc/manual/src/quick-start.md
@@ -22,7 +22,7 @@ to subsequent chapters.
    $ curl -sSf -L https://install.lix.systems/lix | sh -s -- install
    ```
 
-   For systems that **already have Nix installed**, such as NixOS systems, read our [install page](https://lix.systems/install)
+   For systems that **already have a Nix implementation installed**, such as NixOS systems, read our [install page](https://lix.systems/install)
 
    The install script will use `sudo`, so make sure you have sufficient rights.
 
diff --git a/flake.nix b/flake.nix
index 14ee8e1ad..66b836f03 100644
--- a/flake.nix
+++ b/flake.nix
@@ -240,7 +240,7 @@
           system: binaryTarball nixpkgsFor.${system}.native.nix nixpkgsFor.${system}.native
         );
 
-        # docker image with Nix inside
+        # docker image with Lix inside
         dockerImage = lib.genAttrs linux64BitSystems (system: self.packages.${system}.dockerImage);
 
         # API docs for Nix's unstable internal C++ interfaces.
@@ -336,7 +336,7 @@
                 };
               in
               pkgs.runCommand "docker-image-tarball-${version}"
-                { meta.description = "Docker image with Nix for ${system}"; }
+                { meta.description = "Docker image with Lix for ${system}"; }
                 ''
                   mkdir -p $out/nix-support
                   image=$out/image.tar.gz
diff --git a/nix-support/binary-tarball.nix b/nix-support/binary-tarball.nix
index b73e59043..6cadcd650 100644
--- a/nix-support/binary-tarball.nix
+++ b/nix-support/binary-tarball.nix
@@ -13,7 +13,7 @@ let
     ];
   };
 
-  meta.description = "Distribution-independent Nix bootstrap binaries for ${system}";
+  meta.description = "Distribution-independent Lix bootstrap binaries for ${system}";
 in
 buildPackages.runCommand "nix-binary-tarball-${version}" { inherit meta; } ''
   cp ${installerClosureInfo}/registration $TMPDIR/reginfo
diff --git a/perl/configure.ac b/perl/configure.ac
index a02cb06c9..493f0c85c 100644
--- a/perl/configure.ac
+++ b/perl/configure.ac
@@ -29,7 +29,7 @@ NEED_PROG(xz, xz)
 AC_MSG_CHECKING([whether Perl is recent enough])
 if ! $perl -e 'open(FOO, "-|", "true"); while (<FOO>) { print; }; close FOO or die;'; then
     AC_MSG_RESULT(no)
-    AC_MSG_ERROR([Your Perl version is too old.  Nix requires Perl 5.8.0 or newer.])
+    AC_MSG_ERROR([Your Perl version is too old.  Lix requires Perl 5.8.0 or newer.])
 fi
 AC_MSG_RESULT(yes)
 
diff --git a/src/libcmd/common-eval-args.cc b/src/libcmd/common-eval-args.cc
index e86213020..9a7c30d57 100644
--- a/src/libcmd/common-eval-args.cc
+++ b/src/libcmd/common-eval-args.cc
@@ -45,7 +45,7 @@ MixEvalArgs::MixEvalArgs()
   -I /etc/nixos
   ```
 
-  will cause Nix to look for paths relative to `/home/eelco/Dev` and
+  will cause Lix to look for paths relative to `/home/eelco/Dev` and
   `/etc/nixos`, in that order. This is equivalent to setting the
   `NIX_PATH` environment variable to
 
@@ -61,7 +61,7 @@ MixEvalArgs::MixEvalArgs()
   -I /etc/nixos
   ```
 
-  will cause Nix to search for `<nixpkgs/path>` in
+  will cause Lix to search for `<nixpkgs/path>` in
   `/home/eelco/Dev/nixpkgs-branch/path` and `/etc/nixos/nixpkgs/path`.
 
   If a path in the Nix search path starts with `http://` or `https://`,
@@ -73,7 +73,7 @@ MixEvalArgs::MixEvalArgs()
   -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/master.tar.gz
   ```
 
-  tells Nix to download and use the current contents of the `master`
+  tells Lix to download and use the current contents of the `master`
   branch in the `nixpkgs` repository.
 
   The URLs of the tarballs from the official `nixos.org` channels
diff --git a/src/libexpr/eval-settings.hh b/src/libexpr/eval-settings.hh
index 4674acda2..64c74c4b9 100644
--- a/src/libexpr/eval-settings.hh
+++ b/src/libexpr/eval-settings.hh
@@ -71,8 +71,8 @@ struct EvalSettings : Config
     Setting<bool> enableImportFromDerivation{
         this, true, "allow-import-from-derivation",
         R"(
-          By default, Nix allows you to `import` from a derivation, allowing
-          building at evaluation time. With this option set to false, Nix will
+          By default, Lix allows you to `import` from a derivation, allowing
+          building at evaluation time. With this option set to false, Lix will
           throw an error when evaluating an expression that uses this feature,
           allowing users to ensure their evaluation will not require any
           builds to take place.
diff --git a/src/libexpr/primops/fetchClosure.cc b/src/libexpr/primops/fetchClosure.cc
index 3804db6eb..a736957eb 100644
--- a/src/libexpr/primops/fetchClosure.cc
+++ b/src/libexpr/primops/fetchClosure.cc
@@ -51,7 +51,7 @@ static void runFetchClosureWithRewrite(EvalState & state, const PosIdx pos, Stor
         throw Error({
             .msg = HintFmt(
                 "The 'toPath' value '%s' is input-addressed, so it can't possibly be the result of rewriting to a content-addressed path.\n\n"
-                "Set 'toPath' to an empty string to make Nix report the correct content-addressed path.",
+                "Set 'toPath' to an empty string to make Lix report the correct content-addressed path.",
                 state.store->printStorePath(toPath)),
             .pos = state.positions[pos]
         });
@@ -271,7 +271,7 @@ static RegisterPrimOp primop_fetchClosure({
       ```
 
       It is possible to fetch an [input-addressed store path](@docroot@/glossary.md#gloss-input-addressed-store-object) and return it as is.
-      However, this is the least preferred way of invoking `fetchClosure`, because it requires that the input-addressed paths are trusted by the Nix configuration.
+      However, this is the least preferred way of invoking `fetchClosure`, because it requires that the input-addressed paths are trusted by the Lix configuration.
 
       **`builtins.storePath`**
 
diff --git a/src/libmain/common-args.cc b/src/libmain/common-args.cc
index af7f46296..20b5befe4 100644
--- a/src/libmain/common-args.cc
+++ b/src/libmain/common-args.cc
@@ -33,7 +33,7 @@ MixCommonArgs::MixCommonArgs(const std::string & programName)
 
     addFlag({
         .longName = "option",
-        .description = "Set the Nix configuration setting *name* to *value* (overriding `nix.conf`).",
+        .description = "Set the Lix configuration setting *name* to *value* (overriding `nix.conf`).",
         .category = miscCategory,
         .labels = {"name", "value"},
         .handler = {[this](std::string name, std::string value) {
diff --git a/src/libmain/shared.hh b/src/libmain/shared.hh
index b791980fa..d7d872319 100644
--- a/src/libmain/shared.hh
+++ b/src/libmain/shared.hh
@@ -124,7 +124,7 @@ void detectStackOverflow();
  *
  * This is called by the handler installed by detectStackOverflow().
  *
- * This gives Nix library consumers a limit opportunity to report the error
+ * This gives Lix library consumers a limit opportunity to report the error
  * condition. The handler should exit the process.
  * See defaultStackOverflowHandler() for a reference implementation.
  *
diff --git a/src/libstore/daemon.cc b/src/libstore/daemon.cc
index 641910bd7..4b55668cb 100644
--- a/src/libstore/daemon.cc
+++ b/src/libstore/daemon.cc
@@ -243,7 +243,7 @@ struct ClientSettings
                 } else if (name == settings.pluginFiles.name) {
                     if (tokenizeString<Paths>(value) != settings.pluginFiles.get())
                         warn("Ignoring the client-specified plugin-files.\n"
-                             "The client specifying plugins to the daemon never made sense, and was removed in Nix >=2.14.");
+                             "The client specifying plugins to the daemon never made sense, and was removed in Nix.");
                 }
                 else if (trusted
                     || name == settings.buildTimeout.name
diff --git a/src/libstore/filetransfer.hh b/src/libstore/filetransfer.hh
index c692f1485..23105e245 100644
--- a/src/libstore/filetransfer.hh
+++ b/src/libstore/filetransfer.hh
@@ -40,12 +40,12 @@ struct FileTransferSettings : Config
         this, 300, "stalled-download-timeout",
         R"(
           The timeout (in seconds) for receiving data from servers
-          during download. Nix cancels idle downloads after this
+          during download. Lix cancels idle downloads after this
           timeout's duration.
         )"};
 
     Setting<unsigned int> tries{this, 5, "download-attempts",
-        "How often Nix will attempt to download a file before giving up."};
+        "How often Lix will attempt to download a file before giving up."};
 };
 
 extern FileTransferSettings fileTransferSettings;
diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc
index 993a8cfa5..763dc9158 100644
--- a/src/libstore/globals.cc
+++ b/src/libstore/globals.cc
@@ -87,7 +87,7 @@ Settings::Settings()
 
     /* Set the build hook location
 
-       For builds we perform a self-invocation, so Nix has to be self-aware.
+       For builds we perform a self-invocation, so Lix has to be self-aware.
        That is, it has to know where it is installed. We don't think it's sentient.
 
        Normally, nix is installed according to `nixBinDir`, which is set at compile time,
@@ -101,7 +101,7 @@ Settings::Settings()
        current executable, using `getSelfExe()`.
 
        As a last resort, we resort to `PATH`. Hopefully we find a `nix` there that's compatible.
-       If you're porting Nix to a new platform, that might be good enough for a while, but
+       If you're porting Lix to a new platform, that might be good enough for a while, but
        you'll want to improve `getSelfExe()` to work on your platform.
      */
     std::string nixExePath = nixBinDir + "/nix";
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index 581de7ff6..ab33efe8a 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -131,7 +131,7 @@ public:
     Setting<bool> tryFallback{
         this, false, "fallback",
         R"(
-          If set to `true`, Nix will fall back to building from source if a
+          If set to `true`, Lix will fall back to building from source if a
           binary substitute fails. This is equivalent to the `--fallback`
           flag. The default is `false`.
         )",
@@ -149,9 +149,9 @@ public:
     MaxBuildJobsSetting maxBuildJobs{
         this, 1, "max-jobs",
         R"(
-          This option defines the maximum number of jobs that Nix will try to
+          This option defines the maximum number of jobs that Lix will try to
           build in parallel. The default is `1`. The special value `auto`
-          causes Nix to use the number of CPUs in your system. `0` is useful
+          causes Lix to use the number of CPUs in your system. `0` is useful
           when using remote builders to prevent any local builds (except for
           `preferLocalBuild` derivation attribute which executes locally
           regardless). It can be overridden using the `--max-jobs` (`-j`)
@@ -195,11 +195,11 @@ public:
     Setting<std::string> thisSystem{
         this, SYSTEM, "system",
         R"(
-          The system type of the current Nix installation.
-          Nix will only build a given [derivation](@docroot@/language/derivations.md) locally when its `system` attribute equals any of the values specified here or in [`extra-platforms`](#conf-extra-platforms).
+          The system type of the current Lix installation.
+          Lix will only build a given [derivation](@docroot@/language/derivations.md) locally when its `system` attribute equals any of the values specified here or in [`extra-platforms`](#conf-extra-platforms).
 
-          The default value is set when Nix itself is compiled for the system it will run on.
-          The following system types are widely used, as [Nix is actively supported on these platforms](@docroot@/contributing/hacking.md#platforms):
+          The default value is set when Lix itself is compiled for the system it will run on.
+          The following system types are widely used, as [Lix is actively supported on these platforms](@docroot@/contributing/hacking.md#platforms):
 
           - `x86_64-linux`
           - `x86_64-darwin`
@@ -210,7 +210,7 @@ public:
           - `armv7l-linux`
 
           In general, you do not have to modify this setting.
-          While you can force Nix to run a Darwin-specific `builder` executable on a Linux machine, the result would obviously be wrong.
+          While you can force Lix to run a Darwin-specific `builder` executable on a Linux machine, the result would obviously be wrong.
 
           This value is available in the Nix language as
           [`builtins.currentSystem`](@docroot@/language/builtin-constants.md#builtins-currentSystem)
@@ -252,8 +252,8 @@ public:
         R"(
           The path to the helper program that executes remote builds.
 
-          Nix communicates with the build hook over `stdio` using a custom protocol to request builds that cannot be performed directly by the Nix daemon.
-          The default value is the internal Nix binary that implements remote building.
+          Lix communicates with the build hook over `stdio` using a custom protocol to request builds that cannot be performed directly by the Nix daemon.
+          The default value is the internal Lix binary that implements remote building.
 
           > **Important**
           >
@@ -270,7 +270,7 @@ public:
     Setting<bool> alwaysAllowSubstitutes{
         this, false, "always-allow-substitutes",
         R"(
-          If set to `true`, Nix will ignore the `allowSubstitutes` attribute in
+          If set to `true`, Lix will ignore the `allowSubstitutes` attribute in
           derivations and always attempt to use available substituters.
           For more information on `allowSubstitutes`, see [the manual chapter on advanced attributes](../language/advanced-attributes.md).
         )"};
@@ -278,7 +278,7 @@ public:
     Setting<bool> buildersUseSubstitutes{
         this, false, "builders-use-substitutes",
         R"(
-          If set to `true`, Nix will instruct remote build machines to use
+          If set to `true`, Lix will instruct remote build machines to use
           their own binary substitutes if available. In practical terms, this
           means that remote hosts will fetch as many build dependencies as
           possible from their own substitutes (e.g, from `cache.nixos.org`),
@@ -317,7 +317,7 @@ public:
     Setting<bool> useSubstitutes{
         this, true, "substitute",
         R"(
-          If set to `true` (default), Nix will use binary substitutes if
+          If set to `true` (default), Lix will use binary substitutes if
           available. This option can be disabled to force building from
           source.
         )",
@@ -326,9 +326,9 @@ public:
     Setting<std::string> buildUsersGroup{
         this, "", "build-users-group",
         R"(
-          This options specifies the Unix group containing the Nix build user
-          accounts. In multi-user Nix installations, builds should not be
-          performed by the Nix account since that would allow users to
+          This options specifies the Unix group containing the Lix build user
+          accounts. In multi-user Lix installations, builds should not be
+          performed by the Lix account since that would allow users to
           arbitrarily modify the Nix store and database by supplying specially
           crafted builders; and they cannot be performed by the calling user
           since that would allow him/her to influence the build result.
@@ -338,11 +338,11 @@ public:
           of the group specified here (as listed in `/etc/group`). Those user
           accounts should not be used for any other purpose\!
 
-          Nix will never run two builds under the same user account at the
+          Lix will never run two builds under the same user account at the
           same time. This is to prevent an obvious security hole: a malicious
           user writing a Nix expression that modifies the build result of a
           legitimate Nix expression being built by another user. Therefore it
-          is good to have as many Nix build user accounts as you can spare.
+          is good to have as many Lix build user accounts as you can spare.
           (Remember: uids are cheap.)
 
           The build users should have permission to create files in the Nix
@@ -351,7 +351,7 @@ public:
           and its mode should be `1775`.
 
           If the build users group is empty, builds will be performed under
-          the uid of the Nix process (that is, the uid of the caller if
+          the uid of the Lix process (that is, the uid of the caller if
           `NIX_REMOTE` is empty, the uid under which the Nix daemon runs if
           `NIX_REMOTE` is `daemon`). Obviously, this should not be used
           with a nix daemon accessible to untrusted clients.
@@ -405,7 +405,7 @@ public:
     Setting<bool> keepLog{
         this, true, "keep-build-log",
         R"(
-          If set to `true` (the default), Nix will write the build log of a
+          If set to `true` (the default), Lix will write the build log of a
           derivation (i.e. the standard output and error of its builder) to
           the directory `/nix/var/log/nix/drvs`. The build log can be
           retrieved using the command `nix-store -l path`.
@@ -468,7 +468,7 @@ public:
     Setting<bool> autoOptimiseStore{
         this, false, "auto-optimise-store",
         R"(
-          If set to `true`, Nix automatically detects files in the store
+          If set to `true`, Lix automatically detects files in the store
           that have identical contents, and replaces them with hard links to
           a single copy. This saves disk space. If set to `false` (the
           default), you can still run `nix-store --optimise` to get rid of
@@ -519,7 +519,7 @@ public:
           network).
 
           Currently, sandboxing only work on Linux and macOS. The use of a
-          sandbox requires that Nix is run as root (so you should use the
+          sandbox requires that Lix is run as root (so you should use the
           “build users” feature to perform the actual builds under different
           users than root).
 
@@ -545,7 +545,7 @@ public:
           If the source is in the Nix store, then its closure will be added to
           the sandbox as well.
 
-          Depending on how Nix was built, the default value for this option
+          Depending on how Lix was built, the default value for this option
           may be empty or provide `/bin/sh` as a bind-mount of `bash`.
         )",
         {"build-chroot-dirs", "build-sandbox-paths"}};
@@ -556,7 +556,7 @@ public:
     Setting<bool> requireDropSupplementaryGroups{this, getuid() == 0, "require-drop-supplementary-groups",
         R"(
           Following the principle of least privilege,
-          Nix will attempt to drop supplementary groups when building with sandboxing.
+          Lix will attempt to drop supplementary groups when building with sandboxing.
 
           However this can fail under some circumstances.
           For example, if the user lacks the `CAP_SETGID` capability.
@@ -642,7 +642,7 @@ public:
           A whitespace-separated list of public keys.
 
           At least one of the following condition must be met
-          for Nix to accept copying a store object from another
+          for Lix to accept copying a store object from another
           Nix store (such as a substituter):
 
           - the store object has been signed using a key in the trusted keys list
@@ -665,14 +665,14 @@ public:
         this, 60 * 60, "tarball-ttl",
         R"(
           The number of seconds a downloaded tarball is considered fresh. If
-          the cached tarball is stale, Nix will check whether it is still up
-          to date using the ETag header. Nix will download a new version if
+          the cached tarball is stale, Lix will check whether it is still up
+          to date using the ETag header. Lix will download a new version if
           the ETag header is unsupported, or the cached ETag doesn't match.
 
-          Setting the TTL to `0` forces Nix to always check if the tarball is
+          Setting the TTL to `0` forces Lix to always check if the tarball is
           up to date.
 
-          Nix caches tarballs in `$XDG_CACHE_HOME/nix/tarballs`.
+          Lix caches tarballs in `$XDG_CACHE_HOME/nix/tarballs`.
 
           Files fetched via `NIX_PATH`, `fetchGit`, `fetchMercurial`,
           `fetchTarball`, and `fetchurl` respect this TTL.
@@ -701,7 +701,7 @@ public:
         R"(
           System types of executables that can be run on this machine.
 
-          Nix will only build a given [derivation](@docroot@/language/derivations.md) locally when its `system` attribute equals any of the values specified here or in the [`system` option](#conf-system).
+          Lix will only build a given [derivation](@docroot@/language/derivations.md) locally when its `system` attribute equals any of the values specified here or in the [`system` option](#conf-system).
 
           Setting this can be useful to build derivations locally on compatible machines:
           - `i686-linux` executables can be run on `x86_64-linux` machines (set by default)
@@ -748,16 +748,16 @@ public:
         "substituters",
         R"(
           A list of [URLs of Nix stores](@docroot@/command-ref/new-cli/nix3-help-stores.md#store-url-format) to be used as substituters, separated by whitespace.
-          A substituter is an additional [store](@docroot@/glossary.md#gloss-store) from which Nix can obtain [store objects](@docroot@/glossary.md#gloss-store-object) instead of building them.
+          A substituter is an additional [store](@docroot@/glossary.md#gloss-store) from which Lix can obtain [store objects](@docroot@/glossary.md#gloss-store-object) instead of building them.
 
           Substituters are tried based on their priority value, which each substituter can set independently.
           Lower value means higher priority.
           The default is `https://cache.nixos.org`, which has a priority of 40.
 
-          At least one of the following conditions must be met for Nix to use a substituter:
+          At least one of the following conditions must be met for Lix to use a substituter:
 
           - The substituter is in the [`trusted-substituters`](#conf-trusted-substituters) list
-          - The user calling Nix is in the [`trusted-users`](#conf-trusted-users) list
+          - The user calling Lix is in the [`trusted-users`](#conf-trusted-users) list
 
           In addition, each store path should be trusted as described in [`trusted-public-keys`](#conf-trusted-public-keys)
         )",
@@ -866,13 +866,13 @@ public:
         this, 0, "download-speed",
         R"(
           Specify the maximum transfer rate in kilobytes per second you want
-          Nix to use for downloads.
+          Lix to use for downloads.
         )"};
 
     Setting<std::string> netrcFile{
         this, fmt("%s/%s", nixConfDir, "netrc"), "netrc-file",
         R"(
-          If set to an absolute path to a `netrc` file, Nix will use the HTTP
+          If set to an absolute path to a `netrc` file, Lix will use the HTTP
           authentication credentials in this file when trying to download from
           a remote host through HTTP or HTTPS. Defaults to
           `$NIX_CONF_DIR/netrc`.
@@ -898,7 +898,7 @@ public:
         this, getDefaultSSLCertFile(), "ssl-cert-file",
         R"(
           The path of a file containing CA certificates used to
-          authenticate `https://` downloads. Nix by default will use
+          authenticate `https://` downloads. Lix by default will use
           the first of the following files that exists:
 
           1. `/etc/ssl/certs/ca-certificates.crt`
@@ -915,7 +915,7 @@ public:
     Setting<StringSet> ignoredAcls{
         this, {"security.selinux", "system.nfs4_acl", "security.csm"}, "ignored-acls",
         R"(
-          A list of ACLs that should be ignored, normally Nix attempts to
+          A list of ACLs that should be ignored, normally Lix attempts to
           remove all ACLs from files and directories in the Nix store, but
           some ACLs like `security.selinux` or `system.nfs4_acl` can't be
           removed even by root. Therefore it's best to just ignore them.
@@ -926,7 +926,7 @@ public:
         this, {}, "hashed-mirrors",
         R"(
           A list of web servers used by `builtins.fetchurl` to obtain files by
-          hash. Given a hash type *ht* and a base-16 hash *h*, Nix will try to
+          hash. Given a hash type *ht* and a base-16 hash *h*, Lix will try to
           download the file from *hashed-mirror*/*ht*/*h*. This allows files to
           be downloaded even if they have disappeared from their original URI.
           For example, given an example mirror `http://tarballs.nixos.org/`,
@@ -939,7 +939,7 @@ public:
           }
           ```
 
-          Nix will attempt to download this file from
+          Lix will attempt to download this file from
           `http://tarballs.nixos.org/sha256/2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae`
           first. If it is not available there, if will try the original URI.
         )"};
@@ -948,7 +948,7 @@ public:
         this, 0, "min-free",
         R"(
           When free disk space in `/nix/store` drops below `min-free` during a
-          build, Nix performs a garbage-collection until `max-free` bytes are
+          build, Lix performs a garbage-collection until `max-free` bytes are
           available or there is no more garbage. A value of `0` (the default)
           disables this feature.
         )"};
@@ -983,7 +983,7 @@ public:
           itself, they must be DSOs compatible with the instance of Nix
           running at the time (i.e. compiled against the same headers, not
           linked to any incompatible libraries). They should not be linked to
-          any Nix libs directly, as those will be available already at load
+          any Lix libs directly, as those will be available already at load
           time.
 
           If an entry in the list is a directory, all files in the directory
@@ -996,7 +996,7 @@ public:
     Setting<bool> allowSymlinkedStore{
         this, false, "allow-symlinked-store",
         R"(
-          If set to `true`, Nix will stop complaining if the store directory
+          If set to `true`, Lix will stop complaining if the store directory
           (typically /nix/store) contains symlink components.
 
           This risks making some builds "impure" because builders sometimes
@@ -1009,13 +1009,13 @@ public:
     Setting<bool> useXDGBaseDirectories{
         this, false, "use-xdg-base-directories",
         R"(
-          If set to `true`, Nix will conform to the [XDG Base Directory Specification] for files in `$HOME`.
+          If set to `true`, Lix will conform to the [XDG Base Directory Specification] for files in `$HOME`.
           The environment variables used to implement this are documented in the [Environment Variables section](@docroot@/command-ref/env-common.md).
 
           [XDG Base Directory Specification]: https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
 
           > **Warning**
-          > This changes the location of some well-known symlinks that Nix creates, which might break tools that rely on the old, non-XDG-conformant locations.
+          > This changes the location of some well-known symlinks that Lix creates, which might break tools that rely on the old, non-XDG-conformant locations.
 
           In particular, the following locations change:
 
@@ -1025,7 +1025,7 @@ public:
           | `~/.nix-defexpr`  | `$XDG_STATE_HOME/nix/defexpr`  |
           | `~/.nix-channels` | `$XDG_STATE_HOME/nix/channels` |
 
-          If you already have Nix installed and are using [profiles](@docroot@/package-management/profiles.md) or [channels](@docroot@/command-ref/nix-channel.md), you should migrate manually when you enable this option.
+          If you already have Lix installed and are using [profiles](@docroot@/package-management/profiles.md) or [channels](@docroot@/command-ref/nix-channel.md), you should migrate manually when you enable this option.
           If `$XDG_STATE_HOME` is not set, use `$HOME/.local/state/nix` instead of `$XDG_STATE_HOME/nix`.
           This can be achieved with the following shell commands:
 
diff --git a/src/libstore/linux/fchmodat2-compat.hh b/src/libstore/linux/fchmodat2-compat.hh
index 6ad8a5578..d5ef81e22 100644
--- a/src/libstore/linux/fchmodat2-compat.hh
+++ b/src/libstore/linux/fchmodat2-compat.hh
@@ -5,7 +5,7 @@
  * a glibc git checkout via `rg --pcre2 'define __NR_fchmodat2 (?!452)'`.
  *
  * The problem is that glibc 2.39 and libseccomp 2.5.5 are needed to
- * get the syscall number. However, a Nix built against nixpkgs 23.11
+ * get the syscall number. However, a Lix built against nixpkgs 23.11
  * (glibc 2.38) should still have the issue fixed without depending
  * on the build environment.
  *
diff --git a/src/libstore/local-fs-store.hh b/src/libstore/local-fs-store.hh
index d6bda05d1..e03023916 100644
--- a/src/libstore/local-fs-store.hh
+++ b/src/libstore/local-fs-store.hh
@@ -18,12 +18,12 @@ struct LocalFSStoreConfig : virtual StoreConfig
     const PathSetting stateDir{this,
         rootDir.get() ? *rootDir.get() + "/nix/var/nix" : settings.nixStateDir,
         "state",
-        "Directory where Nix will store state."};
+        "Directory where Lix will store state."};
 
     const PathSetting logDir{this,
         rootDir.get() ? *rootDir.get() + "/nix/var/log/nix" : settings.nixLogDir,
         "log",
-        "directory where Nix will store log files."};
+        "directory where Lix will store log files."};
 
     const PathSetting realStoreDir{this,
         rootDir.get() ? *rootDir.get() + "/nix/store" : storeDir, "real",
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index d92fafa1b..f5eaa9f5f 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -313,13 +313,13 @@ LocalStore::LocalStore(const Params & params)
             throw Error(
                 "Your Nix store has a database in Berkeley DB format,\n"
                 "which is no longer supported. To convert to the new format,\n"
-                "please upgrade Nix to version 0.12 first.");
+                "please use the original Nix version 0.12 first.");
 
         if (curSchema < 6)
             throw Error(
                 "Your Nix store has a database in flat file format,\n"
                 "which is no longer supported. To convert to the new format,\n"
-                "please upgrade Nix to version 1.11 first.");
+                "please use the original Nix version 1.11 first.");
 
         if (!lockFile(globalLock.get(), ltWrite, false)) {
             printInfo("waiting for exclusive access to the Nix store...");
diff --git a/src/libstore/local-store.hh b/src/libstore/local-store.hh
index 808fdc202..fd2985a86 100644
--- a/src/libstore/local-store.hh
+++ b/src/libstore/local-store.hh
@@ -23,6 +23,9 @@ namespace nix {
  * 0.7.  Version 2 was Nix 0.8 and 0.9.  Version 3 is Nix 0.10.
  * Version 4 is Nix 0.11.  Version 5 is Nix 0.12-0.16.  Version 6 is
  * Nix 1.0.  Version 7 is Nix 1.3. Version 10 is 2.0.
+ *
+ * Lix started at 2.90, it cannot ever go past version 10 (Nix 2.18),
+ * since doing so will break compatibility with future CppNix versions.
  */
 const int nixSchemaVersion = 10;
 
@@ -49,7 +52,7 @@ struct LocalStoreConfig : virtual LocalFSStoreConfig
         R"(
           Allow this store to be opened when its [database](@docroot@/glossary.md#gloss-nix-database) is on a read-only filesystem.
 
-          Normally Nix will attempt to open the store database in read-write mode, even for querying (when write access is not needed), causing it to fail if the database is on a read-only filesystem.
+          Normally Lix will attempt to open the store database in read-write mode, even for querying (when write access is not needed), causing it to fail if the database is on a read-only filesystem.
 
           Enable read-only mode to disable locking and open the SQLite database with the [`immutable` parameter](https://www.sqlite.org/c3ref/open.html) set.
 
diff --git a/src/libstore/profiles.hh b/src/libstore/profiles.hh
index 193c0bf21..9672a17bd 100644
--- a/src/libstore/profiles.hh
+++ b/src/libstore/profiles.hh
@@ -42,7 +42,7 @@ struct Generation
      * of the generation.
      *
      * These store paths / objects are not unique to the generation
-     * within a profile. Nix tries to ensure successive generations have
+     * within a profile. Lix tries to ensure successive generations have
      * distinct contents to avoid bloat, but nothing stops two
      * non-adjacent generations from having the same contents.
      *
diff --git a/src/libstore/s3-binary-cache-store.cc b/src/libstore/s3-binary-cache-store.cc
index cf5f125d4..13a709104 100644
--- a/src/libstore/s3-binary-cache-store.cc
+++ b/src/libstore/s3-binary-cache-store.cc
@@ -196,7 +196,7 @@ struct S3BinaryCacheStoreConfig : virtual BinaryCacheStoreConfig
     const Setting<std::string> profile{this, "", "profile",
         R"(
           The name of the AWS configuration profile to use. By default
-          Nix will use the `default` profile.
+          Lix will use the `default` profile.
         )"};
 
     const Setting<std::string> region{this, Aws::Region::US_EAST_1, "region",
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc
index eb9b5c3ef..952958d51 100644
--- a/src/libstore/store-api.cc
+++ b/src/libstore/store-api.cc
@@ -1379,9 +1379,9 @@ std::shared_ptr<Store> openFromNonUri(const std::string & uri, const Store::Para
                 } catch (Error & e) {
                     return LocalStore::makeLocalStore(params);
                 }
-                warn("'%s' does not exist, so Nix will use '%s' as a chroot store", stateDir, chrootStore);
+                warn("'%s' does not exist, so Lix will use '%s' as a chroot store", stateDir, chrootStore);
             } else
-                debug("'%s' does not exist, so Nix will use '%s' as a chroot store", stateDir, chrootStore);
+                debug("'%s' does not exist, so Lix will use '%s' as a chroot store", stateDir, chrootStore);
             Store::Params chrootStoreParams;
             chrootStoreParams["root"] = chrootStore;
             // FIXME? this ignores *all* store parameters passed to this function?
diff --git a/src/libstore/worker-protocol.cc b/src/libstore/worker-protocol.cc
index d76a8d2b8..d4954aaa8 100644
--- a/src/libstore/worker-protocol.cc
+++ b/src/libstore/worker-protocol.cc
@@ -74,7 +74,7 @@ void WorkerProto::Serialise<DerivedPath>::write(const Store & store, WorkerProto
                     GET_PROTOCOL_MINOR(conn.version));
             },
             [&](std::monostate) {
-                throw Error("wanted to build a derivation that is itself a build product, but protocols do not support that. Try upgrading the Nix on the other end of this connection");
+                throw Error("wanted to build a derivation that is itself a build product, but protocols do not support that. Try upgrading the Nix implementation on the other end of this connection");
             },
         }, sOrDrvPath);
     }
diff --git a/src/libutil/config.hh b/src/libutil/config.hh
index fb433c607..8a4d24456 100644
--- a/src/libutil/config.hh
+++ b/src/libutil/config.hh
@@ -13,7 +13,7 @@
 namespace nix {
 
 /**
- * The Config class provides Nix runtime configurations.
+ * The Config class provides Lix runtime configurations.
  *
  * What is a Configuration?
  *   A collection of uniquely named Settings.
diff --git a/src/libutil/experimental-features.cc b/src/libutil/experimental-features.cc
index f1cbfdb16..3a834293a 100644
--- a/src/libutil/experimental-features.cc
+++ b/src/libutil/experimental-features.cc
@@ -293,7 +293,7 @@ std::set<ExperimentalFeature> parseFeatures(const std::set<std::string> & rawFea
 }
 
 MissingExperimentalFeature::MissingExperimentalFeature(ExperimentalFeature feature)
-    : Error("experimental Nix feature '%1%' is disabled; use '--extra-experimental-features %1%' to override", showExperimentalFeature(feature))
+    : Error("experimental Lix feature '%1%' is disabled; use '--extra-experimental-features %1%' to override", showExperimentalFeature(feature))
     , missingFeature(feature)
 {}
 
diff --git a/src/libutil/logging.hh b/src/libutil/logging.hh
index 7b7f69833..64be8bc62 100644
--- a/src/libutil/logging.hh
+++ b/src/libutil/logging.hh
@@ -41,7 +41,7 @@ struct LoggerSettings : Config
     Setting<bool> showTrace{
         this, false, "show-trace",
         R"(
-          Whether Nix should print out a stack trace in case of Nix
+          Whether Lix should print out a stack trace in case of Nix
           expression evaluation errors.
         )"};
 };
diff --git a/src/nix/config.cc b/src/nix/config.cc
index 5b280d11d..1a45dc390 100644
--- a/src/nix/config.cc
+++ b/src/nix/config.cc
@@ -14,7 +14,7 @@ struct CmdConfig : virtual NixMultiCommand
 
     std::string description() override
     {
-        return "manipulate the Nix configuration";
+        return "manipulate the Lix configuration";
     }
 
     Category category() override { return catUtility; }
@@ -41,7 +41,7 @@ struct CmdConfigShow : Command, MixJSON
 
     std::string description() override
     {
-        return "show the Nix configuration or the value of a specific setting";
+        return "show the Lix configuration or the value of a specific setting";
     }
 
     Category category() override { return catUtility; }
diff --git a/src/nix/develop.md b/src/nix/develop.md
index e39048bb1..c5a27d08a 100644
--- a/src/nix/develop.md
+++ b/src/nix/develop.md
@@ -77,7 +77,7 @@ R""(
 # Description
 
 `nix develop` starts a `bash` shell that provides an interactive build
-environment nearly identical to what Nix would use to build
+environment nearly identical to what Lix would use to build
 [*installable*](./nix.md#installables). Inside this shell, environment variables and shell
 functions are set up so that you can interactively and incrementally
 build your package.
diff --git a/src/nix/flake-check.md b/src/nix/flake-check.md
index c8307f8d8..058aaa5ec 100644
--- a/src/nix/flake-check.md
+++ b/src/nix/flake-check.md
@@ -22,7 +22,7 @@ This command verifies that the flake specified by flake reference
 that the derivations specified by the flake's `checks` output can be
 built successfully.
 
-If the `keep-going` option is set to `true`, Nix will keep evaluating as much
+If the `keep-going` option is set to `true`, Lix will keep evaluating as much
 as it can and report the errors as it encounters them. Otherwise it will stop
 at the first error.
 
diff --git a/src/nix/flake-lock.md b/src/nix/flake-lock.md
index 6d10258e3..b1ab6994a 100644
--- a/src/nix/flake-lock.md
+++ b/src/nix/flake-lock.md
@@ -26,7 +26,7 @@ R""(
   >
   > When trying to refer to a flake in a subdirectory, write `./another`
   > instead of `another`.
-  > Otherwise Nix will try to look up the flake in the registry.
+  > Otherwise Lix will try to look up the flake in the registry.
 
 # Description
 
diff --git a/src/nix/flake-update.md b/src/nix/flake-update.md
index 63df3b12a..5a7b25b1a 100644
--- a/src/nix/flake-update.md
+++ b/src/nix/flake-update.md
@@ -39,7 +39,7 @@ R""(
   >
   > When trying to refer to a flake in a subdirectory, write `./another`
   > instead of `another`.
-  > Otherwise Nix will try to look up the flake in the registry.
+  > Otherwise Lix will try to look up the flake in the registry.
 
 # Description
 
diff --git a/src/nix/flake.md b/src/nix/flake.md
index 92f477917..9188bca74 100644
--- a/src/nix/flake.md
+++ b/src/nix/flake.md
@@ -98,7 +98,7 @@ Flakes corresponding to a local path can also be referred to by a direct path re
 The semantic of such a path is as follows:
 
 * If the directory is part of a Git repository, then the input will be treated as a `git+file:` URL, otherwise it will be treated as a `path:` url;
-* If the directory doesn't contain a `flake.nix` file, then Nix will search for such a file upwards in the file system hierarchy until it finds any of:
+* If the directory doesn't contain a `flake.nix` file, then Lix will search for such a file upwards in the file system hierarchy until it finds any of:
     1. The Git repository root, or
     2. The filesystem root (/), or
     3. A folder on a different mount point.
@@ -176,7 +176,7 @@ Currently the `type` attribute can be one of the following:
   The `ref` attribute defaults to resolving the `HEAD` reference.
 
   The `rev` attribute must denote a commit that exists in the branch
-  or tag specified by the `ref` attribute, since Nix doesn't do a full
+  or tag specified by the `ref` attribute, since Lix doesn't do a full
   clone of the remote repository by default (and the Git protocol
   doesn't allow fetching a `rev` without a known `ref`). The default
   is the commit currently pointed to by `ref`.
diff --git a/src/nix/help-stores.md b/src/nix/help-stores.md
index 47ba9b94d..33562b031 100644
--- a/src/nix/help-stores.md
+++ b/src/nix/help-stores.md
@@ -1,6 +1,6 @@
 R"(
 
-Nix supports different types of stores. These are described below.
+Lix supports different types of stores. These are described below.
 
 ## Store URL format
 
@@ -22,11 +22,11 @@ instance,
 --store ssh://machine.example.org?ssh-key=/path/to/my/key
 ```
 
-tells Nix to access the store on a remote machine via the SSH
+tells Lix to access the store on a remote machine via the SSH
 protocol, using `/path/to/my/key` as the SSH private key. The
 supported settings for each store type are documented below.
 
-The special store URL `auto` causes Nix to automatically select a
+The special store URL `auto` causes Lix to automatically select a
 store as follows:
 
 * Use the [local store](#local-store) `/nix/store` if `/nix/var/nix`
diff --git a/src/nix/log.md b/src/nix/log.md
index 81bfefd96..cd13a1fe3 100644
--- a/src/nix/log.md
+++ b/src/nix/log.md
@@ -26,7 +26,7 @@ R""(
 
 This command prints the log of a previous build of the [*installable*](./nix.md#installables) on standard output.
 
-Nix looks for build logs in two places:
+Lix looks for build logs in two places:
 
 * In the directory `/nix/var/log/nix/drvs`, which contains logs for
   locally built derivations.
@@ -35,7 +35,7 @@ Nix looks for build logs in two places:
   should be named `<cache>/log/<base-name-of-store-path>`, where
   `store-path` is a derivation,
   e.g. `https://cache.nixos.org/log/dvmig8jgrdapvbyxb1rprckdmdqx08kv-hello-2.10.drv`.
-  For non-derivation store paths, Nix will first try to determine the
+  For non-derivation store paths, Lix will first try to determine the
   deriver by fetching the `.narinfo` file for this store path.
 
 )""
diff --git a/src/nix/nix.md b/src/nix/nix.md
index 0d588cd01..192b1d1c1 100644
--- a/src/nix/nix.md
+++ b/src/nix/nix.md
@@ -41,10 +41,11 @@ R""(
 
 # Description
 
-Nix is a tool for building software, configurations and other
+Lix is a tool for building software, configurations and other
 artifacts in a reproducible and declarative way. For more information,
-see the [Nix homepage](https://nixos.org/) or the [Nix
-manual](https://nixos.org/manual/nix/stable/).
+see the [Lix homepage](https://lix.systems).
+
+Lix is a fork of the original implementation [CppNix](https://github.com/nixos/nix).
 
 # Installables
 
@@ -68,7 +69,7 @@ The following types of installable are supported by most commands:
   - Specified with `--expr`/`-E`
 
 For most commands, if no installable is specified, `.` is assumed.
-That is, Nix will operate on the default flake output attribute of the flake in the current directory.
+That is, Lix will operate on the default flake output attribute of the flake in the current directory.
 
 ### Flake output attribute
 
@@ -99,7 +100,7 @@ way:
   and `RELATIVE_FLAKE_DIR_PATH` is the path (relative to the directory
   root) of the closest parent of the given path that contains a `flake.nix` within
   the git repository.
-  If no such directory exists, then Nix will error-out.
+  If no such directory exists, then Lix will error-out.
 
   Note that the search will only include files indexed by git. In particular, files
   which are matched by `.gitignore` or have never been `git add`-ed will not be
@@ -120,12 +121,12 @@ way:
 - If the supplied path is not a git repository, then the url will have the form
   `path:FLAKE_DIR_PATH` where `FLAKE_DIR_PATH` is the closest parent
   of the supplied path that contains a `flake.nix` file (within the same file-system).
-  If no such directory exists, then Nix will error-out.
+  If no such directory exists, then Lix will error-out.
 
   For example, if `/foo/bar/flake.nix` exists, then `/foo/bar/baz/` will resolve to
  `path:/foo/bar`
 
-If *attrpath* is omitted, Nix tries some default values; for most
+If *attrpath* is omitted, Lix tries some default values; for most
 subcommands, the default is `packages.`*system*`.default`
 (e.g. `packages.x86_64-linux.default`), but some subcommands have
 other defaults. If *attrpath* *is* specified, *attrpath* is
@@ -243,7 +244,7 @@ operate are determined as follows:
   …
   ```
 * If you didn't specify the desired outputs, but the derivation has an
-  attribute `meta.outputsToInstall`, Nix will use those outputs. For
+  attribute `meta.outputsToInstall`, Lix will use those outputs. For
   example, since the package `nixpkgs#libxml2` has this attribute:
 
   ```console
@@ -259,7 +260,7 @@ operate are determined as follows:
 
   [store derivation]: ../../glossary.md#gloss-store-derivation
 
-* Otherwise, Nix will use all outputs of the derivation.
+* Otherwise, Lix will use all outputs of the derivation.
 
 # Nix stores
 
diff --git a/src/nix/optimise-store.md b/src/nix/optimise-store.md
index f6fb66f97..0f263bb45 100644
--- a/src/nix/optimise-store.md
+++ b/src/nix/optimise-store.md
@@ -16,7 +16,7 @@ links to a single instance.
 
 Note that you can also set `auto-optimise-store` to `true` in
 `nix.conf` to perform this optimisation incrementally whenever a new
-path is added to the Nix store. To make this efficient, Nix maintains
+path is added to the Nix store. To make this efficient, Lix maintains
 a content-addressed index of all the files in the Nix store in the
 directory `/nix/store/.links/`.
 
diff --git a/src/nix/ping-store.md b/src/nix/ping-store.md
index 8c846791b..1296ef685 100644
--- a/src/nix/ping-store.md
+++ b/src/nix/ping-store.md
@@ -25,9 +25,9 @@ R""(
 This command tests whether a particular Nix store (specified by the
 argument `--store` *url*) can be accessed. What this means is
 dependent on the type of the store. For instance, for an SSH store it
-means that Nix can connect to the specified machine.
+means that Lix can connect to the specified machine.
 
-If the command succeeds, Nix returns a exit code of 0 and does not
+If the command succeeds, Lix returns a exit code of 0 and does not
 print any output.
 
 )""
diff --git a/src/nix/repl.cc b/src/nix/repl.cc
index 9677c1b48..88aeed859 100644
--- a/src/nix/repl.cc
+++ b/src/nix/repl.cc
@@ -48,7 +48,7 @@ struct CmdRepl : RawInstallablesCommand
     void applyDefaultInstallables(std::vector<std::string> & rawInstallables) override
     {
         if (!experimentalFeatureSettings.isEnabled(Xp::ReplFlake) && !(file) && rawInstallables.size() >= 1) {
-            warn("future versions of Nix will require using `--file` to load a file");
+            warn("future versions of Lix will require using `--file` to load a file");
             if (rawInstallables.size() > 1)
                 warn("more than one input file is not currently supported");
             auto filePath = rawInstallables[0].data();
diff --git a/src/nix/run.md b/src/nix/run.md
index 7639e4d3e..9ed4a87fb 100644
--- a/src/nix/run.md
+++ b/src/nix/run.md
@@ -26,7 +26,7 @@ R""(
   ```
 
   Note that `vim` (as of the time of writing of this page) is not an
-  app but a package. Thus, Nix runs the eponymous file from the `vim`
+  app but a package. Thus, Lix runs the eponymous file from the `vim`
   package.
 
 * Run `vim` with arguments:
diff --git a/src/nix/why-depends.md b/src/nix/why-depends.md
index fdbebbedc..8e393c9c4 100644
--- a/src/nix/why-depends.md
+++ b/src/nix/why-depends.md
@@ -53,18 +53,18 @@ R""(
 
 # Description
 
-Nix automatically determines potential runtime dependencies between
+Lix automatically determines potential runtime dependencies between
 store paths by scanning for the *hash parts* of store paths. For
 instance, if there exists a store path
 `/nix/store/9df65igwjmf2wbw0gbrrgair6piqjgmi-glibc-2.31`, and a file
 inside another store path contains the string `9df65igw…`, then the
 latter store path *refers* to the former, and thus might need it at
-runtime. Nix always maintains the existence of the transitive closure
+runtime. Lix always maintains the existence of the transitive closure
 of a store path under the references relationship; it is therefore not
 possible to install a store path without having all of its references
 present.
 
-Sometimes Nix packages end up with unexpected runtime dependencies;
+Sometimes Lix packages end up with unexpected runtime dependencies;
 for instance, a reference to a compiler might accidentally end up in a
 binary, causing the former to be in the latter's closure. This kind of
 *closure size bloat* is undesirable.
diff --git a/tests/functional/binary-cache.sh b/tests/functional/binary-cache.sh
index 7c64a115c..50e23e56c 100644
--- a/tests/functional/binary-cache.sh
+++ b/tests/functional/binary-cache.sh
@@ -70,7 +70,7 @@ export _NIX_FORCE_HTTP=1
 basicDownloadTests
 
 
-# Test whether Nix notices if the NAR doesn't match the hash in the NAR info.
+# Test whether Lix notices if the NAR doesn't match the hash in the NAR info.
 clearStore
 
 nar=$(ls $cacheDir/nar/*.nar.xz | head -n1)
diff --git a/tests/functional/build-remote-trustless-should-fail-0.sh b/tests/functional/build-remote-trustless-should-fail-0.sh
index 3d4a4b097..1582a7b32 100644
--- a/tests/functional/build-remote-trustless-should-fail-0.sh
+++ b/tests/functional/build-remote-trustless-should-fail-0.sh
@@ -18,7 +18,7 @@ nix-build build-hook.nix -A passthru.input2 \
   --store "$TEST_ROOT/local" \
   --option system-features bar
 
-# Now when we go to build that downstream derivation, Nix will try to
+# Now when we go to build that downstream derivation, Lix will try to
 # copy our already-build `input2` to the remote store. That store object
 # is input-addressed, so this will fail.
 
diff --git a/tests/functional/ca/derivation-json.sh b/tests/functional/ca/derivation-json.sh
index c1480fd17..318a32ce0 100644
--- a/tests/functional/ca/derivation-json.sh
+++ b/tests/functional/ca/derivation-json.sh
@@ -17,7 +17,7 @@ drvPath3=$(nix derivation add --dry-run < $TEST_HOME/foo.json)
 [[ ! -e "$drvPath3" ]]
 
 # But the JSON is rejected without the experimental feature
-expectStderr 1 nix derivation add < $TEST_HOME/foo.json --experimental-features nix-command | grepQuiet "experimental Nix feature 'ca-derivations' is disabled"
+expectStderr 1 nix derivation add < $TEST_HOME/foo.json --experimental-features nix-command | grepQuiet "experimental Lix feature 'ca-derivations' is disabled"
 
 # Without --dry-run it is actually written
 drvPath4=$(nix derivation add < $TEST_HOME/foo.json)
diff --git a/tests/functional/db-migration.sh b/tests/functional/db-migration.sh
index 44cd16bc0..7346e32f6 100644
--- a/tests/functional/db-migration.sh
+++ b/tests/functional/db-migration.sh
@@ -2,7 +2,7 @@
 
 source common.sh
 
-# Only run this if we have an older Nix available
+# Only run this if we have an older Lix available
 # XXX: This assumes that the `daemon` package is older than the `client` one
 if [[ -z "${NIX_DAEMON_PACKAGE-}" ]]; then
     skipTest "not using the Nix daemon"
diff --git a/tests/functional/fetchTree-file.sh b/tests/functional/fetchTree-file.sh
index 6395c133d..7dbc7667c 100644
--- a/tests/functional/fetchTree-file.sh
+++ b/tests/functional/fetchTree-file.sh
@@ -72,7 +72,7 @@ EOF
     # old 'tarball' fetcher should still have their type set to 'tarball'
     assert (nodes.tarball_default_unpack.locked.type == "tarball");
     # Unless explicitely specified, the 'unpack' parameter shouldn’t appear here
-    # because that would break older Nix versions
+    # because that would break older Nix implementation versions
     assert (!nodes.tarball_default_unpack.locked ? unpack);
     assert (nodes.tarball_default_unpack.locked.narHash == "$input_directory_hash");
 
@@ -94,7 +94,7 @@ EOF
     [[ -z "${NIX_DAEMON_PACKAGE-}" ]] && return 0
 
     # Ensure that a lockfile generated by the current Nix for tarball inputs
-    # can still be read by an older Nix
+    # can still be read by an older Nix implementation
 
     cat <<EOF > flake.nix
     {
diff --git a/tests/functional/impure-derivations.sh b/tests/functional/impure-derivations.sh
index 39d053a04..38be4234e 100644
--- a/tests/functional/impure-derivations.sh
+++ b/tests/functional/impure-derivations.sh
@@ -17,7 +17,7 @@ drvPath2=$(nix derivation add < $TEST_HOME/impure-drv.json)
 [[ "$drvPath" = "$drvPath2" ]]
 
 # But only with the experimental feature!
-expectStderr 1 nix derivation add < $TEST_HOME/impure-drv.json --experimental-features nix-command | grepQuiet "experimental Nix feature 'impure-derivations' is disabled"
+expectStderr 1 nix derivation add < $TEST_HOME/impure-drv.json --experimental-features nix-command | grepQuiet "experimental Lix feature 'impure-derivations' is disabled"
 
 nix build --dry-run --json --file ./impure-derivations.nix impure.all
 json=$(nix build -L --no-link --json --file ./impure-derivations.nix impure.all)
diff --git a/tests/functional/lang/eval-okay-foldlStrict-lazy-initial-accumulator.nix b/tests/functional/lang/eval-okay-foldlStrict-lazy-initial-accumulator.nix
index abcd5366a..148e94954 100644
--- a/tests/functional/lang/eval-okay-foldlStrict-lazy-initial-accumulator.nix
+++ b/tests/functional/lang/eval-okay-foldlStrict-lazy-initial-accumulator.nix
@@ -1,5 +1,5 @@
 # Checks that the nul value for the accumulator is not forced unconditionally.
-# Some languages provide a foldl' that is strict in this argument, but Nix does not.
+# Some languages provide a foldl' that is strict in this argument, but Nix language does not.
 builtins.foldl'
   (_: x: x)
   (throw "This is never forced")
diff --git a/tests/functional/lang/eval-okay-fromTOML.nix b/tests/functional/lang/eval-okay-fromTOML.nix
index 963932689..4704b62cc 100644
--- a/tests/functional/lang/eval-okay-fromTOML.nix
+++ b/tests/functional/lang/eval-okay-fromTOML.nix
@@ -89,7 +89,7 @@
     bool1 = true
     bool2 = false
 
-    # FIXME: not supported because Nix doesn't have a date/time type.
+    # FIXME: not supported because Nix language doesn't have a date/time type.
     #odt1 = 1979-05-27T07:32:00Z
     #odt2 = 1979-05-27T00:32:00-07:00
     #odt3 = 1979-05-27T00:32:00.999999-07:00
diff --git a/tests/functional/nested-sandboxing/command.sh b/tests/functional/nested-sandboxing/command.sh
index 69366486c..f35fff9ed 100644
--- a/tests/functional/nested-sandboxing/command.sh
+++ b/tests/functional/nested-sandboxing/command.sh
@@ -1,5 +1,5 @@
 export NIX_BIN_DIR=$(dirname $(type -p nix))
-# TODO Get Nix and its closure more flexibly
+# TODO Get Lix and its closure more flexibly
 export EXTRA_SANDBOX="/nix/store $(dirname $NIX_BIN_DIR)"
 
 badStoreUrl () {
diff --git a/tests/functional/repl_characterization/test-session.cc b/tests/functional/repl_characterization/test-session.cc
index be3d407f3..e59064fc5 100644
--- a/tests/functional/repl_characterization/test-session.cc
+++ b/tests/functional/repl_characterization/test-session.cc
@@ -173,7 +173,7 @@ void TestSession::runCommand(std::string command)
         std::cerr << "runCommand " << command << "\n";
     }
     command += "\n";
-    // We have to feed a newline into the output parser, since Nix might not
+    // We have to feed a newline into the output parser, since Lix might not
     // give us a newline before a prompt in all cases (it might clear line
     // first, e.g.)
     outputParser.feed('\n');
diff --git a/tests/installer/default.nix b/tests/installer/default.nix
index 49cfd2bcc..6d3e19987 100644
--- a/tests/installer/default.nix
+++ b/tests/installer/default.nix
@@ -202,7 +202,7 @@ let
         # use a plain tarpipe instead
         tar -C ${mockChannel pkgs} -c channel | ssh -p 20022 $ssh_opts vagrant@localhost tar x -f-
 
-        echo "Testing Nix installation..."
+        echo "Testing Lix installation..."
         $ssh <<EOF
           set -ex