I’ve been trying to help @LayerTwoLabs. They have built a GUI program that lets you install an upgraded signet version of Bitcoin Core with BIP300. There are also a few sidechains like Thunder and a privacy focused zcash fork. 

Paul Sztorc is currently building CUSF, which stands for Core-Untouched Soft Fork. It will allow miners and users to choose future soft forks in an organized manner. 

The cypherpunk vision for Bitcoin is coming soon 

 So would be like a modular add on to the core everyone runs? Seems interesting if so. Everyone could have their own 'version' of bitcoin but be compliant at the base layer. Or have I totally got that wrong?! 

 I don’t want to misrepresent CUSF, but this is the last solid thing Paul has written about it. There is code on LayerTwoLabs' GitHub 

https://twitter.com/truthcoin/status/1743073625328992679?s=46&t=KKPpg4jlAEfn5NMRsS08uQ 

 That's the best thing I've heard this year 🙌