It is funny, I would never say I would be sad to deprecate a software project. Especially a project boilerplate. But I just merged the deprecation notice, and I do feel down a little.
When Marvin was created React landscape was looking a lot different than today. The ecosystem continues to relentlessly evolve and maintaining a single boilerplate to capture all these possibilities has become unproductive.
The repo will stay available, but we are stopping further improvements and maintenance.
A big thank you to everyone who used and supported Marvin!