OK, an update:
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The content for the 2.6 launch is solid. I've done several rounds of QA, and several mistakes were pointed out by other people. I also found a few that were relatively obscure (i.e. a few spells where I didn't put in the 'consumed' cost attribute for material components, stuff like that). So, now, it's pretty solid.
I've done a few more small improvements. For instance, in Spells, the columns for 'Concentration' and 'Ritual' aren't scannable, because the 'Y' and 'N' are both letters with diagonal shapes and vertical lines. I swapped out the 'N' for a simple '-', changed the 'Y' in rituals to 'R' and the 'Y' to concentration to 'C'. Now, that column is a LOT easier to read and scan.
I pulled the Spell Recovery for Land Druids for now. I don't want to bore you with the complexities of JavaScript, but basically, the way it's written doesn't allow that feature flag to be 'flipped' in the Druid class without adding a whole lot of duplicate content and complexity in other areas. It's better to just add a tiny new JavaScript function instead.
I can't add Booming Blade and Green Flame Blade by myself. The Clean Sheet code is written to handle the design patterns of 5E, and it does it admirably, but these two spells 'break' the pattern in ways that require new JavaScript. I understand code enough to hack and extend simple stuff, but I don't know how to write new functions.
I'm getting a JavaScript coder to help. I'll get them to help me with the Land Druid spell recovery, Booming Blade, and Green Flame Blade, and then it'll be ready for a 2.6 release. Once that's done, and ready to launch...
If necessary, I'll fork the GitHub and host the Clean Sheet for now on. I've been in communication with Greatakillor, the creator, and after he helped me QA a bit, he basically said that it's awesome that we're taking it on, his time to be involved is pretty lacking, and I'm free to fork the project on GitHub if his responses aren't fast enough.
If that comes to pass, I'll set it up in such a way that the 'main' branch will be in one place, and anyone else that home-brews it and wants to upload their versions has a place to do that too. I'm a computer profession, and my own private stuff is in GitHub, so I can be responsive to updates and such.
So, I need another week or two, and it'll be out. (Probably just in time for D&D Beyond to get good enough to make it obsolete, lol.)