Decentralized project storage and deployment with syncthing and git

Recently I've been looking into organizing my digital files and projects a little. Storing media and documents was easy enough using syncthing, and git is obviously nice for programming projects.
But what about combining the two?

Essentially what you need to do is create a git folder and sync it using syncthing.
This folder is NOT where you will actally be working on your projects, it is just the git server. You can initialize projects here like so:

# in the git server folder
$ mkdir myproject
$ cd myproject
$ git init --bare
        

Now you use this repository like you do with any other git server:

$ git clone /path/to/git/repo/myproject
$ cd myproject
$ ls
        

It also works the other way around if you already have a project going on:

$ git remote add origin /path/to/git/repo/myproject
$ git push -u origin master
        

Now you have decentralized project storage, but you might still want to mirror your project to services like github. This is trivial using git hooks.
create the following script in /path/to/git/repo/myproject/hooks/post-update

#!/bin/sh

exec git push --mirror https://githost.com/username/project.git
        

Don't forget to make it exectuable with chmod +x hooks/post-update if it isn't already.

And that's all! When changes are pushed the post-update script will run and mirror the repository to the third party. You can add your own code to the script to also for example deploy your application.

Update 20/07/2021:

It should be noted that mirroring like this will override all changes made to the remote! So you should treat github as a static mirror.
If you did accept changes in the remote repository and want to copy them into your local project you can git pull <mirrorurl> into your working repo and then git push into the remote again.