I was just thinking if a self hostable tracking solution was possible. Right now, I use MALSync on Firefox. Used to use Tachiyomi, but stopped after they discontinued and tracking on Browder with an extension just feels faster. BTW, just in case, there’s an app called Miru (and a fork Migu) that has built-in auto tracking with anilist.
There is Komikku for linux though it’s kinda limited to sources it supports. Komga is a nice self hosted option with support for Mihon and all the tachiyomi forks for android. There is a tachiyomi fork called Komikku (different from the linux app) that I like.