I find it absurd that a TUI desktop app is heavier than a native one AND heavier than most browser based desktop apps, it's so much waste of RAM, CPU, energy/battery just to show text.

I've been working on my own AI harness/chat in C++ Qt6[1] and it's lighter than anything else even with lots of features like sub-agents, code diff, terminal emulator, simple editor, markdown preview, translucent background, custom themes, permissions, MCP, git integration(commits, stage, diffs), dock system to move elements and tabs for projects; but it's not released yet as I want to polish it a bit, remove a few bugs I found and simplify the UI.

[1]: https://zeteo.krysoph.com/preview.html

This is absolutely true. With my constrained Intel Laptop with 16 GB VRAM, I can use both pi.dev and Qwen 3.6 35B-A3B LLM locally without much fuss. The same cannot be said about OC. Because OC loads a lot of skills by default.

Also, I am not in favor of TS for coding harness agents, is it time for a Rust based coding harness agent?

Anyone tried tau-agent? https://github.com/tau-agent/tau