This repo contains my personal RSS/Atom feeds and a minimal environment for the automatic deploy to an OPML file. You can download it in the releases page of this repository i.e. here.
I use elfeed and elfeed-org to manage my collection and to export the OPML file. The feeds.org file contains hierarchically the different feeds.
The automatic deploying is done by travis which installs a custom Emacs with the last versions of elfeed and elfeed-org packages from MELPA using a Nix derivation that can be found in default.nix, eventually it runs the export.el script. Then travis is delegated to tag the commit and releases the OPML file to Github.