How do I update Forge?

I thought I might as well return to playing this game after ignoring it for 5 or 6 years.
Unfortunately it's not as simple as downloading the files as I remember I made a lot of changes locally, quite a few of which were never added to the main repository, so I'd need my own source code and merge stuff and recompile. I pretty much have to update as the game became way too unstable ever since I switched to my current computer which runs Windows 10 and newer Java instead of whatever OS the previous one had, and by unstable I mean crashing every second or third game level unstable, that's why I stopped playing back then.
The good news, I still have my login and password saved in the browser for git.cardforge.org.
The other good news, it doesn't seem to be github which locked me out by the 2FA madness recently so I can probably still use this.
The bad news, the URL no longer works, so where do I go to access it nowadays? I don't have my source files locally anymore.
Also, anyone knows where the game stores the path to the "User" folder? The game is on a different drive now and it still insist to read from C:\Games\MtgForge and crashes on launch as the Games folder is now on the E drive. I tried looking through all the files with a text search for the path but found nothing and I don't remember where to set that.
Unfortunately it's not as simple as downloading the files as I remember I made a lot of changes locally, quite a few of which were never added to the main repository, so I'd need my own source code and merge stuff and recompile. I pretty much have to update as the game became way too unstable ever since I switched to my current computer which runs Windows 10 and newer Java instead of whatever OS the previous one had, and by unstable I mean crashing every second or third game level unstable, that's why I stopped playing back then.
The good news, I still have my login and password saved in the browser for git.cardforge.org.
The other good news, it doesn't seem to be github which locked me out by the 2FA madness recently so I can probably still use this.
The bad news, the URL no longer works, so where do I go to access it nowadays? I don't have my source files locally anymore.
Also, anyone knows where the game stores the path to the "User" folder? The game is on a different drive now and it still insist to read from C:\Games\MtgForge and crashes on launch as the Games folder is now on the E drive. I tried looking through all the files with a text search for the path but found nothing and I don't remember where to set that.