HTMX is awesome. I've replaced several OSS web apps on my home server with HTMX + Go + PostgreSQL replacements. The results are lightweight, responsive, work great on desktop and mobile alike, all with the absolute minimum complexity required. The codebases are easy to understand and modify, and so far I'm going months between updates (mostly just minor bugfixes for my applications). I fully expec my mature apps will go years if not decades between required upgrades.