There's a Weechat plugin [1], however I remember it having problems with UI lags. In addition, the official Freenode bridge on matrix.org often has problems as

There's a Weechat plugin [1], however I remember it having problems with UI lags. In addition, the official Freenode bridge on matrix.org often has problems as well, but that's what I get for not bothering to run my own bridge. At least it seems like the Weechat plugin is under active development. [2] I should give it another try. [1] https://matrix.org/docs/projects/client/weechat.html https://matrix.org/docs/projects/client/weechat.html [2] https://github.com/torhve/weechat-matrix-protocol-script https://github.com/torhve/weechat-matrix-protocol-script