A few months ago I added an OPML export of all my feeds manually to the sidebar as Blogroll. This week I installed an instance of TinyTinyRSS, to see if I can take it closer to my ideal feedreader. TinyTinyRSS provides a public URL of all the feeds as OPML. So now that link is my automatically updated OPML blogroll in the sidebar. (As long as I keep my TinyTinyRSS reader in sync with my offline reader)