update tasks & flake

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/261abe8a44a7e8392598d038d2e01f7b33cf26d0' (2023-09-24)
  → 'github:NixOS/nixpkgs/d7f206b723e42edb09d9d753020a84b3061a79d8' (2024-01-22)

1 files changed, 0 insertions, 3 deletions

diff --git a/flake.nix b/flake.nix
index 64ea3ee..9da1d5d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,8 +1,5 @@
 {
   description = "Aria Shrimpton dissertation";
-  inputs = {
-    nixpkgs.url = github:NixOS/nixpkgs/nixos-23.05;
-  };
   outputs = {
     self,
     nixpkgs,