Ask HN: Solution to keep a cloud dev environment in sync with my laptop?

Currently I'm using a hacky script that watches the project directory and rsyncs the project whenever anything changes. It works, but it's slow, and I have to manually keep the rsync --ignore flags in sync with the .gitignore file for the project. Hoping someone out there has something better.

Bittorrent sync https://www.getsync.com/ would be another alternative

Syncthing might do the trick.