Low-footprint services are are great I have been using Shaarli for bookmarks for quite a while it never failed me, and is very easy on server resources ~50Mb of RAM

Before I started to host a bookmark service i made some investigation, and the final dockerized contenders in 2023 for what relates to memory were:

Shaarli: (~ 50Mb of RAM )

Shiori: ( ~30Mb of RAM but lacks quite some features)

linkding ( ~200Mb of RAM)

In the end i went with Shaarli