If you mostly don't need JS, then it's possible to go with https://stimulus.hotwired.dev/ like approach (doesn't need to be that exact one).
Kanban project management software
I've been using Kanboard (https://kanboard.org/) -- an open-source Kanban project management software. It does feel different (and less featured) when you compare it to Trello, but I'm not sure if I'd use the word clunky. It feels more responsive. Trello gives me the app-like feeling, sure, but I'm not convinced that it's necessarily better UX.
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Shortcut for Kanboard web application (JSON API)
1 project | reddit.com/r/shortcuts | 29 Dec 2021
1 project | reddit.com/r/Kanboard | 21 Dec 2021
What Do You Use As A To Do List Or Project Management?
2 projects | reddit.com/r/linux4noobs | 15 Nov 2021
A different level of hate
1 project | reddit.com/r/ProgrammerHumor | 13 Nov 2021
Free Project Management Software
1 project | reddit.com/r/smallbusiness | 7 Nov 2021