> The flakes were the main UX/DX improvement for me. Before them I honestly could not do anything.

Agreed. I think flakes are far more intuitive than channels. In a flake everything is declared in the repo it's used in. I still don't understand channels.

For someone who's used to thinking in channels, I suppose flakes would be jarring. For someone (like me) who came from the world of Project.toml and package.json, flakes make a lot of sense.