Here youcan configure Prosody <a href="https://modules.prosody.im/mod_firewall" target="_blank">mod_firewall</a> module. Youcan create multiple configuration files bellow, and change their order. Don't hesitate to share your configurations withthe community (for example by adding some examples in the plugin documentation).
Warning: mod_firewall is disabled in the livechat <a href="/admin/plugins/show/peertube-plugin-livechat" target="_blank">plugin settings</a>, you have to enable it if you want this configuration to be taken into account.
Youcan enable an "Emojy only mode" in your chatrooms. When this mode isenabled, participants canonly send emojis (standard, or channel custom emojis). Moderators are not affected by this limitation.