I was looking for alternatives but couldn't really find something great with a decent UI and full-text search.
I don't really use it interactively, it's more to have a "backup" of websites I find useful after finding some I used to reference for years disappeared and were never added to archive.org or occasionally sending the Readability/PDF versions to my Kindle.
I also setup YaCY[1] at one point with the idea of having my own local personal search engine for the archived sites, but I ended up never using it.
I import around 3k bookmarks, it starts archiving them. Immediately some archival methods fail (usually screenshot and pdf), and after archiving a few hundred bookmarks it never continues to archive the rest. I‘ve let it sit and do its thing for several days, it never manages to get through all of them (or even a sizable minority).
Different machines, different filesystems, different networks. No idea what‘s wrong.