> As I browsed HN at home, I found that links to her website would not load
Thanks for mentioning this, because I was having the same issue and I was surprised no one was mentioning that the site was (appeared to be) down. Switching to using a VPN made the post available to me.
It runs in the background as a systemd service, and the config is just:
$ cat /etc/keyd/default.conf
[ids]
*
[main]
capslock = end
(I got excited that someone else likes the same keybinding I do and wanted to share, and only then saw "not an invitation for fixes". Well, maybe it'll help someone else.)