Webrecorder is a program/service to archive web pages . Available as a desktop app (https://github.com/webrecorder/webrecorder-desktop)
This might be the Read it later/Pocket alternative I was looking for (testing)
ArchiveBox (https://archivebox.io/) is interesting too. Doesn't have a a GUI yet, but provides a browsable index for saved web pages.
Other programs I've looked at: Wallabag, Polar Bookshelf, Zotero and Shiori.
Monolith (https://github.com/Y2Z/monolith) is useful for saving individual web pages incl. js and css.
Linux Geeks doing what Linux Geeks do..