And it breaks easily. I still can see several posts on my private instance that have been deleted. The delete command never made it to my server for any number of reasons. As some posts never make it to my instance either. I guess in the long term some kind of delivery queue and guarantee would be nice.
I actually like PairDrop better, as it allows also linking devices that fail to find themselves on the network (for example if you run it behind a reverse proxy). It is obviously pretty similar though.
https://pairdrop.net/
https://github.com/schlagmichdoch/PairDrop