Love the list, just a quick callout, these are pretty resource light services for self hosting, even $5/month seems like a stretch.

If you’re already running a server, the added overhead for a bookmark manager has got to be fractional watts, especially of you’re not bookmarking constantly.

If you’re doing a standalone server just for this, these can more than likely be hosted on a Raspberry Pi which uses 5W under load (maybe $1/mo under heavy load), and are incredibly lean when idle (pennies/month).

I do think your post does a good job making people think about the hidden costs of self hosting, but done right self hosting energy can be greatly reduced