As a privacy concious ADHDer, it is a sad reality that OP's product is never going to be something I can trust enough to use. Anyone has any experience of similar/alternative local-first FOSS alternatives / replacements, or resources on how you figured out how to build workflows that worked with you with non-ADHD focused tools? I have come to the point where I am going to be losing my job very soon because I have 0 executive functioning, silver-lining of this is that I can maybe take some time to figure out how better processes than I have and enough non-work related things I want to get done to have an incentive for this
Unfortunately, it is not FOSS but I find Obsidian with kanban plugin a killer. They do release their Android app from Github, and some custom ROMs allows you to disallow network permission. Also for Linux version, you can use Flatpak release and run it without network permission. Not very ideal, but I find it working for me.