> What about Wire? Anybody know anything bad about Wire?:) Both the client and server-side software are free, and it does not have any proprietary dependencies, so it suffers from neither of the issues with Signal or Telegram. If your modified version is used to connect to their servers there are some restrictions[1] on how it does so. That seems reasonable to me. It's up to Wire how their computers are used. If your modified version does not use Wire's servers there are no restrictions beyond the terms of the GPL.
[1] https://github.com/wireapp/wire
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