I have been using `git-branchless` a lot and really liking it. It should be part of the main git project, consider it a halfway between git and switching to some other tool.
One of the main reasons to use git-branchless over jj or Sapling is if you need support for a workflow that's not supported in jj/Sapling yet, such as Git LFS. I (git-branchless author) would like to see both systems get to feature parity one day to unblock users who would like to migrate but can't.
Do you perchance have something directly comparing jj and your branchless work?
Regardless keep up the good work. Assuming some one hasn't done it while I haven't been paying attention I will some day write some code to support gitlab in the submit command (I have a script I use all the time, just written around it rather than within).
I don't have anything written. These days, the only unique things git-branchless has are certain commands (`git test`, `git sync`, `git submit`, which would be good to implement in jj), and a few minor features like `git record --stash`, and of course compatibility with various Git extensions like LFS.