feat: update devenv shell

.envrc

@@ -1 +1 @@
-use flake ./tools/nix
+use flake ./tools/nix --no-pure-eval

.gitignore

@@ -5,8 +5,9 @@ __pycache__/
 *.py[cod]
 *$py.class
 
-# Direnv cache
+# Direnv/Devenv cache
 .direnv
+.devenv
 
 
 # Distribution / packaging

justfile

@@ -1,6 +1,8 @@
 set positional-arguments
 set dotenv-load
 set shell := ["bash", "-cue"]
+root_dir := `git rev-parse --show-toplevel`
+flake_dir := root_dir / "tools/nix"
 
 # Manage container images.
 mod image 'tools/just/image.just'
@@ -21,6 +23,11 @@ get-version:
   | tr -d '"'
 
 
+alias dev := develop
+# Enter a development shell.
+develop:
+  just nix-develop default
+
 # Set up python environment.
 setup:
   @echo "🔧 Setting up python environment"
@@ -65,3 +72,19 @@ deploy:
 # Generate changelog
 changelog *args:
   @git-cliff -l -c pyproject.toml {{args}}
+
+## Nix Stuff ==================================================================
+# Show all packages configured in the Nix `flake.nix`.
+nix-list *args:
+    cd tools/nix && nix flake --no-pure-eval show
+
+# Enter the Nix `devShell` with name `$1` and execute the command `${@:2}` (default command is '$SHELL')
+[private]
+nix-develop *args:
+    #!/usr/bin/env bash
+    set -eu
+    shell="$1"; shift 1;
+    args=("$@") && [ "${#args[@]}" != 0 ] || args="$SHELL"
+    nix develop --no-pure-eval --accept-flake-config \
+        "{{flake_dir}}#$shell" --command "${args[@]}"
+## ============================================================================