- It relies on free plan of cloudflare tunnels. You can ofcourse adapt it to use ngrok, frp etc.
- It depends on nix, because nix is simply the best option to install software on linux.
- Not any better than xterm, and because it opens in a new tab, might even kill the colab
So overall use at your own risk.
- I grant you the license: 0BSD (BSD zero clause license https://spdx.org/licenses/0BSD.html)