nicer make default (#35)

Makefile

@@ -1,36 +1,47 @@
+# Heavily inspired by Lighthouse: https://github.com/sigp/lighthouse/blob/stable/Makefile
+# and Reth: https://github.com/paradigmxyz/reth/blob/main/Makefile
+.DEFAULT_GOAL := help
+
 VERSION := $(shell git describe --tags --always --dirty="-dev")
 
-.PHONY: all
-all: clean build
+##@ Help
+
+.PHONY: help
+help: ## Display this help.
+	@awk 'BEGIN {FS = ":.*##"; printf "Usage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
 
 .PHONY: v
-v:
+v: ## Show the version
 	@echo "Version: ${VERSION}"
 
+##@ Build
+
 .PHONY: clean
-clean:
+clean: ## Clean the build directory
 	rm -rf build/
 
 .PHONY: build-cli
-build-cli:
+build-cli: ## Build the CLI
 	@mkdir -p ./build
 	go build -trimpath -ldflags "-X github.com/flashbots/go-template/common.Version=${VERSION}" -v -o ./build/cli cmd/cli/main.go
 
 .PHONY: build-httpserver
-build-httpserver:
+build-httpserver: ## Build the HTTP server
 	@mkdir -p ./build
 	go build -trimpath -ldflags "-X github.com/flashbots/go-template/common.Version=${VERSION}" -v -o ./build/httpserver cmd/httpserver/main.go
 
+##@ Test & Development
+
 .PHONY: test
-test:
+test: ## Run tests
 	go test ./...
 
 .PHONY: test-race
-test-race:
+test-race: ## Run tests with race detector
 	go test -race ./...
 
 .PHONY: lint
-lint:
+lint: ## Run linters
 	gofmt -d -s .
 	gofumpt -d -extra .
 	go vet ./...
@@ -39,33 +50,33 @@ lint:
 	nilaway ./...
 
 .PHONY: fmt
-fmt:
+fmt: ## Format the code
 	gofmt -s -w .
 	gci write .
 	gofumpt -w -extra .
 	go mod tidy
 
 .PHONY: gofumpt
-gofumpt:
+gofumpt: ## Run gofumpt
 	gofumpt -l -w -extra .
 
 .PHONY: lt
-lt: lint test
+lt: lint test ## Run linters and tests
 
 .PHONY: cover
-cover:
+cover: ## Run tests with coverage
 	go test -coverprofile=/tmp/go-sim-lb.cover.tmp ./...
 	go tool cover -func /tmp/go-sim-lb.cover.tmp
 	unlink /tmp/go-sim-lb.cover.tmp
 
 .PHONY: cover-html
-cover-html:
+cover-html: ## Run tests with coverage and open the HTML report
 	go test -coverprofile=/tmp/go-sim-lb.cover.tmp ./...
 	go tool cover -html=/tmp/go-sim-lb.cover.tmp
 	unlink /tmp/go-sim-lb.cover.tmp
 
 .PHONY: docker-cli
-docker-cli:
+docker-cli: ## Build the CLI Docker image
 	DOCKER_BUILDKIT=1 docker build \
 		--platform linux/amd64 \
 		--build-arg VERSION=${VERSION} \
@@ -74,7 +85,7 @@ docker-cli:
 	.
 
 .PHONY: docker-httpserver
-docker-httpserver:
+docker-httpserver: ## Build the HTTP server Docker image
 	DOCKER_BUILDKIT=1 docker build \
 		--platform linux/amd64 \
 		--build-arg VERSION=${VERSION} \