fix: zig nightly -> zig 0_14

devshells/README.md

@@ -107,13 +107,6 @@ nix develop .#rust
 - rustfmt
 - clippy
 
-### `zig-nightly` (optional)
-Zig nightly development (only available if zig overlay is working).
-
-```bash
-nix develop .#zig-nightly
-```
-
 ## Usage from Any Directory
 
 ### Option 1: Direct Path Reference

devshells/zig-nightly.nix

@@ -1,13 +0,0 @@
-{ pkgs, lib, zigPackage, ... }:
-
-lib.optionalAttrs (zigPackage != null) (pkgs.mkShell {
-  name = "zig-nightly";
-  packages = [ zigPackage pkgs.zls pkgs.pkg-config pkgs.cmake pkgs.gdb ];
-  shellHook = ''
-    mkdir -p "$PWD/.cache/zig"
-    export ZIG_GLOBAL_CACHE_DIR="$PWD/.cache/zig"
-    echo "Zig shell using ${zigPackage.pname or "zig"} ${
-      zigPackage.version or ""
-    }"
-  '';
-})