it's implemented in nutsack-cli under the aptly named "condom" command
with nutsack-cli you can run a bunch of routers with condom and do routed publishing with the "publish" command
nostr:nprofile1qqs04xzt6ldm9qhs0ctw0t58kf4z57umjzmjg6jywu0seadwtqqc75spz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9mhwden5te0wfjkccte9ec8y6tdv9kzumn9wshszxnhwden5te0wpuhyctdd9jzuenfv96x5ctx9e3k7mf0dv4ph5 Sorry to dig up that old post -- is that implemented somewhere yet?
I'm not a programmer, just a user, so please don 't be annoyed. Is there a name (like TOR) for it to search for (on the web, in app settings and so on)?