Merge commit 'e12308dd63f0ad27b22dcdb3da89c411eebcad2b' into ca-drv-exotic

4 files changed, 11 insertions, 13 deletions

diff --git a/doc/manual/src/advanced-topics/distributed-builds.md b/doc/manual/src/advanced-topics/distributed-builds.md
index c6966a50b..580b36736 100644
--- a/doc/manual/src/advanced-topics/distributed-builds.md
+++ b/doc/manual/src/advanced-topics/distributed-builds.md
@@ -37,7 +37,7 @@ then you need to ensure that the `PATH` of non-interactive login shells
 contains Nix.
 
 > **Warning**
-> 
+>
 > If you are building via the Nix daemon, it is the Nix daemon user
 > account (that is, `root`) that should have SSH access to the remote
 > machine. If you can’t or don’t want to configure `root` to be able to
@@ -52,7 +52,7 @@ example, the following command allows you to build a derivation for
 ```console
 $ uname
 Linux
-    
+
 $ nix build \
   '(with import <nixpkgs> { system = "x86_64-darwin"; }; runCommand "foo" {} "uname > $out")' \
   --builders 'ssh://mac x86_64-darwin'
@@ -103,7 +103,7 @@ default, set it to `-`.
     ```nix
     requiredSystemFeatures = [ "kvm" ];
     ```
-    
+
     will cause the build to be performed on a machine that has the `kvm`
     feature.
 
@@ -112,6 +112,10 @@ default, set it to `-`.
     features appear in the derivation’s `requiredSystemFeatures`
     attribute..
 
+8.  The (base64-encoded) public host key of the remote machine. If omitted, SSH
+    will use its regular known-hosts file. Specifically, the field is calculated
+    via `base64 -w0 /etc/ssh/ssh_host_ed25519_key.pub`.
+
 For example, the machine specification
 
     nix@scratchy.labs.cs.uu.nl  i686-linux      /home/nix/.ssh/id_scratchy_auto        8 1 kvm
diff --git a/doc/manual/src/command-ref/nix-store.md b/doc/manual/src/command-ref/nix-store.md
index 361c20cc9..49d06f31e 100644
--- a/doc/manual/src/command-ref/nix-store.md
+++ b/doc/manual/src/command-ref/nix-store.md
@@ -79,7 +79,7 @@ paths. Realisation is a somewhat overloaded term:
     system). If the path is already valid, we are done immediately.
     Otherwise, the path and any missing paths in its closure may be
     produced through substitutes. If there are no (successful)
-    subsitutes, realisation fails.
+    substitutes, realisation fails.
 
 The output path of each derivation is printed on standard output. (For
 non-derivations argument, the argument itself is printed.)
diff --git a/doc/manual/src/command-ref/opt-common.md b/doc/manual/src/command-ref/opt-common.md
index 9650f53f8..bc8eb6796 100644
--- a/doc/manual/src/command-ref/opt-common.md
+++ b/doc/manual/src/command-ref/opt-common.md
@@ -134,15 +134,6 @@ Most Nix commands accept the following command-line options:
     failure in obtaining the substitutes to lead to a full build from
     source (with the related consumption of resources).
 
-  - `--no-build-hook`  
-    Disables the build hook mechanism. This allows to ignore remote
-    builders if they are setup on the machine.
-    
-    It's useful in cases where the bandwidth between the client and the
-    remote builder is too low. In that case it can take more time to
-    upload the sources to the remote builder and fetch back the result
-    than to do the computation locally.
-
   - `--readonly-mode`  
     When this option is used, no attempt is made to open the Nix
     database. Most Nix operations do need database access, so those
diff --git a/doc/manual/src/installation/prerequisites-source.md b/doc/manual/src/installation/prerequisites-source.md
index 6825af707..12758c5e1 100644
--- a/doc/manual/src/installation/prerequisites-source.md
+++ b/doc/manual/src/installation/prerequisites-source.md
@@ -69,3 +69,6 @@
     `--disable-seccomp-sandboxing` option to the `configure` script (Not
     recommended unless your system doesn't support `libseccomp`). To get
     the library, visit <https://github.com/seccomp/libseccomp>.
+ 
+  - Niels Lohmann's [JSON library](https://github.com/nlohmann/json).
+