Frontend/backend project structure

+ Base implementation of a differential synchronization based on Neil
  Fraser article/talk

See https://www.youtube.com/watch?v=S2Hp_1jqpY8

Makefile

@@ -1,10 +1,18 @@
 DOKKU_URL := dokku@dev.lookingfora.name:guesstimate
 
 watch:
-	npm run dev
+	modd
 
-build: clean
-	npm run build
+install-deps:
+	cd client && npm install
+
+build: clean build-server build-client
+
+build-client:
+	cd client && npm run build
+
+build-server:
+	cd server && CGO_ENABLED=0 go build -mod=vendor -v -o bin/server ./cmd/server
 
 clean:
 	rm -rf dist