I think the native Claude and Codex apps already do this for free. They even have the voice input.
Claude Code will help you set this up using tmux. Voice input and output personally seems like a gimmick, but OS accessibilty features should work fine for this.
"Claude Code will help you set this up using tmux" - I don't think that you can connect to tmux sessions running in Claude Code/Codex remote VMs using their mobile apps. Their mobile apps don't provide a terminal emulator afaik
Right, this requires using a terminal app.
Nice to have when cooking and I want to use my laptop without wiping my hands dry constantly.