Replace justfile with run

run

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+function check {
+  nix flake check
+}
+
+function help {
+  printf "%s <task> [args]\n\nTasks:\n" "$0"
+
+  compgen -A function | grep -v "^_" | cat -n
+
+  printf "\nExtended help:\n  Each task has comments for general usage\n"
+}
+
+function nixos:build {
+  _nixos build "$@"
+}
+
+function nixos:switch {
+  _nixos switch "$@"
+}
+
+function nixos:test {
+  _nixos test "$@"
+}
+
+function update {
+  nix flake update
+}
+
+function wsl:build {
+  _home build wsl2
+}
+
+function wsl:switch {
+  _home switch wsl2
+}
+
+function _home {
+  local command="$1"
+  local flake="$2"
+  shift 2
+
+  NIXPKGS_ALLOW_UNFREE=1 home-manager "$command" \
+    --extra-experimental-features flakes \
+    --extra-experimental-features nix-command \
+    --flake ".#$flake" \
+    --impure "$@"
+}
+
+function _nixos {
+  local command="$1"
+  shift 1
+
+  sudo nixos-rebuild "$command" --flake . "$@"
+}
+
+TIMEFORMAT=$'\nTask completed in %3lR'
+time "${@:-help}"