nope, never worked on it personally. but it something I use daily cause the official client is just so heavy and slow for me, plus I personally like the TUIs
You don't need to remove the post (and generally, posts don't get removed other than in exceptional circumstances). Moderators will probably take out the 'Show HN' prefix but either way, people mispost stuff all the time, it mostly works out fine and isn't a big deal.
