Scriptable, presumably incremental.
There is also vdirsyncer for contacts and calendar, also allows you to keep it in sync between services - it's great if you want to store a copy locally on a caldav / carddav server.
Readit Newsekovarski commented on Command-Line Utility to Backup Google Mail, Calendar and Contacts to Files github.com/WeeJeWel/node-... · Posted by u/weejewel
I've been self-hosting miniflux [0] for a couple years. Rock solid performance, deployment is easy, upgrades are small but meaningful, and doesn't use anything exotic in the tech stack (mainly Go, some vanilla JS, persists data in PostgreSQL).
I mainly browse on my laptop, but it's pretty decent on mobile.
Self hosted miniflux as well but kept running into 403/429 errors when using reddit rss feeds, went back to freshrss.
The biggest issue is that once you invest in a reader, your data aside from the feed opml, is stuck in that reader so your favourites, labels, and content can't migrate.