Darcs [0] patch theory was a predecessor to OTs/CRDTs (and a predecessor to git as well; in some ways it is the "smart" to which git was named "dumb"). When it works and performs well it is still sometimes version control magic. Pijul [1] is an interesting experiment to watch, trying to keep the patch theory flag flying and also trying to bring in updates from OTs and CRDTs as it can. [0] https://darcs.net [1]... - Source: Hacker News / 4 months ago

Perforce. As for DVCS, the best one I've used is Darcs: https://darcs.net/ There are some sticky wickets (specifically, exponential-time conflict resolution) that hindered its adoption. Thankfully, there's Pijul, which is like Darcs but a) solves that problem; and b) is written in Rust! The perfect DVCS, probably! https://pijul.org/. - Source: Hacker News / 6 months ago

Well technically one alternative I am going to bring up predates Git by several years, and that's DARCS. Fans of DARCS have written plenty of material on Git's perceived weaknesses. While DARCS' Haskell codebase apparently had some issues, its underlying "change" semantics have remained influential. For example, Pijul is a Rust-based contender currently in beta. It embraces a huge number of the paradigms,... - Source: dev.to / almost 2 years ago

We already have the "haskell of version control", darcs, i.e. Nobody uses it. Source: over 2 years ago

My company has used Phabricator, which is an alternative to Azure Devops, for about 5 years. A few days ago they announced that the project won't be maintained anymore, so we are looking into alternatives. We have around 50 devs+product folks that use Phabricator at the moment. Source: almost 3 years ago

You also mention Gitlab is close to what you would like - maybe Phabricator is even closer: https://phacility.com/phabricator/. Source: about 3 years ago

Https://phacility.com/phabricator/ I think checks most of those boxes, maybe all. Source: about 3 years ago