shell.nix: migrate to Just as command runner

Justfile

@@ -0,0 +1,26 @@
+default:
+    just --list
+
+update:
+    git checkout -- flake.lock
+    nix flake update --commit-lock-file
+
+# Build a package from `pkgs/` folder.
+pkg-build PKG:
+    nix-build pkgs -A {{PKG}}
+
+# Build Firefox addons.
+pkg-build-firefox-addons:
+    mozilla-addons-to-nix ./pkgs/firefox-addons/firefox-addons.json ./pkgs/firefox-addons/default.nix
+
+# Live server for project website.
+docs-serve:
+    hugo -s ./docs serve
+
+# Build the project website.
+docs-build:
+    hugo -s ./docs/
+
+# Deploy NixOS system.
+deploy-nixos HOST:
+    deploy '.#nixos-${HOST}' --skip-checks

Makefile

@@ -1,37 +0,0 @@
-ROOT := /mnt
-HOST := ni
-
-.PHONY: install
-install:
-	nixos-install --flake ".#${HOST}" --root ${ROOT}
-
-.PHONY: switch
-switch:
-	nixos-rebuild --flake ".#${HOST}" switch
-
-.PHONY: test
-test:
-	nixos-rebuild --flake ".#${HOST}" dry-activate
-
-.PHONY: update
-update:
-	git checkout -- flake.lock
-	nix flake update --commit-lock-file
-
-.PHONY: update_with_forked_inputs
-update_with_forked_inputs:
-	nix flake lock \
-		--override-input guix-overlay git+file:///home/foo-dogsquared/library/projects/software/nix-overlay-guix/ \
-		--override-input dotfiles git+file:///home/foo-dogsquared/library/dotfiles/
-
-.PHONY: docs-serve
-docs-serve:
-	nix develop '.#docs' --impure -c hugo -s ./docs serve
-
-.PHONY: docs-build
-docs-build:
-	nix develop '.#docs' --impure -c hugo -s ./docs/
-
-.PHONY: deploy
-deploy:
-	nix develop --impure -c deploy '.#nixos-${HOST}' --skip-checks

shell.nix

@@ -7,6 +7,7 @@ in pkgs.mkShell {
       # My internal applications.
       run-workflow-in-vm
 
+      just
       age
       asciidoctor
       disko