fix: isolated local dev environment

Makefile

@@ -24,8 +24,8 @@ test:
 tidy:
 	go mod tidy
 
-watch:
-	modd
+watch: tools/modd/bin/modd
+	tools/modd/bin/modd
 
 lint:
 	golangci-lint run --enable-all
@@ -49,6 +49,10 @@ tools/trivy/bin/trivy:
 	mkdir -p tools/trivy/bin
 	curl -sfL https://raw.githubusercontent.com/aquasecurity/trivy/main/contrib/install.sh | sh -s -- -b ./tools/trivy/bin v0.47.0
 
+tools/modd/bin/modd:
+	mkdir -p tools/modd/bin
+	GOBIN=$(PWD)/tools/modd/bin go install github.com/cortesi/modd/cmd/modd@latest
+
 release: release-image release-gitea
 
 release-archive: