On: BundesMessenger, a secure messenger for Germany’s public administration

[msgilligan]

Signal is (as far as I know) single-vendor, which they are confusingly calling “closed proprietary”

[Arathorn → msgilligan]

I wrote this sentence. “closed proprietary” here means that it’s not an open standard, and it’s not an open network you can connect your own clients to, and so it’s vendor-locked, and in the case of Signal there are gaps of years when they don’t release opensource code on the server.