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.

Thanks for the suggestion! Does anyone have any experience using syncthing for git repositories? I know it's not Dropbox's strongest suit.