doc: TODO list to reflect new tasks and remove completed items 📝

- Changed the first task to connect sunken-ship to the internet via wifi instead of ethernet.
- Updated the second task to host the telegram bot again, clarifying its purpose.
- Removed completed tasks related to SSH key management and server configuration.

TODO.md

@@ -1,18 +1,5 @@
 # TODO
 
-1. **Secrets** — Approach A (see [docs/ssh-and-secrets.md](docs/ssh-and-secrets.md)): public repo only, one key per purpose (AGENTS.md), server keys via scp. Optional later: private repo + sops-nix.
+1. Connect sunken-ship to internet via wifi instead of ethernet.
-   - **GitHub:** Use `id_ed25519_github`; in `~/.ssh/config`: `Host github.com` with `IdentityFile ~/.ssh/id_ed25519_github` and `IdentitiesOnly yes`. Remove `id_rsa_github` from GitHub and locally once confirmed unused.
-   - **sunken-ship:** Switch to key auth if still on password: on server `mkdir -p ~/.ssh; chmod 700 ~/.ssh`; from Mac `scp ~/.ssh/id_ed25519_github.pub danny@SERVER:/tmp/`; on server `cat /tmp/id_ed25519_github.pub >> ~/.ssh/authorized_keys; chmod 600 ~/.ssh/authorized_keys`. Optional: create `id_ed25519_servers` and use only for servers (add Host in config).
-   - **Forgejo:** When needed: create `id_ed25519_forgejo`, add to forge, add Host in `~/.ssh/config`.
 
-2. **Server**
+2. Host telegram bot once again (for what purpose?)
-   - Only I use the machine. Access: SSH keys only (no password auth).
-   - Continue configuring (add services in `hosts/sunken-ship.nix` as needed).
-   - SSH: key-only auth; disable password auth. Optionally restrict SSH to LAN.
-   - Passwordless sudo for wheel.
-
-3. ~~Rename nixos-server to sunken-ship~~ Done.
-
-4. Give <something-cooler> wifi access instead of ethernet.
-
-5. Host telegram bot once again (for what purpose?)