build(dev): use air for backend live reload

.air.toml

@@ -0,0 +1,17 @@
+root = "."
+tmp_dir = "_scratch/air"
+
+[build]
+cmd = "go build -o ./_scratch/air/antholume ."
+full_bin = "./_scratch/air/antholume serve"
+delay = 1000
+include_ext = ["go", "tpl", "tmpl", "html", "css", "js", "yaml", "yml"]
+exclude_dir = ["_scratch", "build", "data", "frontend", "node_modules"]
+exclude_file = ["assets/style.css"]
+stop_on_error = true
+
+[log]
+time = true
+
+[misc]
+clean_on_exit = true

.gitignore

@@ -2,6 +2,7 @@ TODO.md
 .DS_Store
 data/
 build/
+tmp/
 .direnv/
 cover.html
 node_modules

AGENTS.md

@@ -41,11 +41,13 @@ Regenerate:
 ## 4) Backend / Assets
 
 ### Common commands
-- Dev server: `make dev`
-- Direct dev run: `CONFIG_PATH=./data DATA_PATH=./data REGISTRATION_ENABLED=true go run main.go serve`
+- Full dev stack: `make dev` (backend on `:8585` + Vite frontend on `:5173`)
+- Backend only: `make dev_backend` (live-reloads with Air)
+- Frontend only: `make dev_frontend`
+- Direct backend run: `CONFIG_PATH=./data DATA_PATH=./data REGISTRATION_ENABLED=true go run main.go serve`
 - No-auth dev run: `CONFIG_PATH=./data DATA_PATH=./data REGISTRATION_ENABLED=true DISABLE_AUTH=true DISABLE_AUTH_USER=evan go run main.go serve`
 - Tests: `make tests`
-- Tailwind asset build: `make build_tailwind`
+- Legacy server-rendered Tailwind asset build: `make legacy_tailwind`
 
 ### Notes
 - The Go server embeds `templates/*` and `assets/*`.

Makefile

@@ -1,4 +1,15 @@
-build_local: build_tailwind
+.PHONY: build_local docker_build_local docker_build_release_dev docker_build_release_latest build_tailwind legacy_tailwind dev dev_backend dev_frontend clean tests
+
+DEV_ENV = GIN_MODE=release \
+	CONFIG_PATH=./data \
+	DATA_PATH=./data \
+	SEARCH_ENABLED=true \
+	REGISTRATION_ENABLED=true \
+	COOKIE_SECURE=false \
+	COOKIE_AUTH_KEY=1234 \
+	LOG_LEVEL=debug
+
+build_local: legacy_tailwind
 	go mod download
 	rm -r ./build || true
 	mkdir -p ./build
@@ -8,17 +19,17 @@ build_local: build_tailwind
 	env GOOS=darwin GOARCH=arm64 go build -ldflags "-X reichard.io/antholume/config.version=`git describe --tags`" -o ./build/server_darwin_arm64
 	env GOOS=darwin GOARCH=amd64 go build -ldflags "-X reichard.io/antholume/config.version=`git describe --tags`" -o ./build/server_darwin_amd64
 
-docker_build_local: build_tailwind
+docker_build_local: legacy_tailwind
 	docker build -t antholume:latest .
 
-docker_build_release_dev: build_tailwind
+docker_build_release_dev: legacy_tailwind
 	docker buildx build \
 		--platform linux/amd64,linux/arm64 \
 		-t gitea.va.reichard.io/evan/antholume:dev \
 		-f Dockerfile-BuildKit \
 		--push .
 
-docker_build_release_latest: build_tailwind
+docker_build_release_latest: legacy_tailwind
 	docker buildx build \
 		--platform linux/amd64,linux/arm64 \
 		-t gitea.va.reichard.io/evan/antholume:latest \
@@ -26,18 +37,19 @@ docker_build_release_latest: build_tailwind
 		-f Dockerfile-BuildKit \
 		--push .
 
-build_tailwind:
+build_tailwind: legacy_tailwind
+
+legacy_tailwind:
 	tailwindcss build -o ./assets/style.css --minify
 
-dev: build_tailwind
-	GIN_MODE=release \
-	CONFIG_PATH=./data \
-	DATA_PATH=./data \
-	SEARCH_ENABLED=true \
-	REGISTRATION_ENABLED=true \
-	COOKIE_SECURE=false \
-	COOKIE_AUTH_KEY=1234 \
-	LOG_LEVEL=debug go run main.go serve
+dev:
+	$(MAKE) -j2 dev_backend dev_frontend
+
+dev_backend:
+	$(DEV_ENV) air
+
+dev_frontend:
+	cd frontend && bun run dev
 
 clean:
 	rm -rf ./build

README.md

@@ -134,7 +134,12 @@ go install github.com/pressly/goose/v3/cmd/goose@latest
 Run Development:
 
 ```bash
-CONFIG_PATH=./data DATA_PATH=./data REGISTRATION_ENABLED=true go run main.go serve
+# Backend API/server on :8585 plus Vite frontend on :5173
+make dev
+
+# Or run one side only
+make dev_backend  # live-reloads with air
+make dev_frontend
 ```
 
 ## Building
@@ -152,8 +157,8 @@ make docker_build_local
 make docker_build_release_latest
 make docker_build_release_dev
 
-# Generate Tailwind CSS
-make build_tailwind
+# Generate legacy Tailwind CSS for server-rendered templates
+make legacy_tailwind
 
 # Clean Local Build
 make clean

flake.nix

@@ -20,6 +20,7 @@
       {
         devShells.default = pkgs.mkShell {
           packages = with pkgs; [
+            air
             go
             golangci-lint
             gopls