Signal Weechat does this iirc, there are a few other alternative clients out there too: https://github.com/thefinn93/signal-weechat https://github.com/thefinn93

Signal Weechat does this iirc, there are a few other alternative clients out there too: https://github.com/thefinn93/signal-weechat https://github.com/thefinn93/signal-weechat