cuda-dev: getting started

Your personal dev box on the cuda-dev hosts: connect over SSH, work inside tmux, and run Claude. Here is the whole thing start to finish — then the same steps written out below.

What you get

You get one container per host — cuda-dev-kvdb, cuda-dev2-kvdb, … — so you can use whichever host’s GPU is free. You reach it over SSH from your laptop while on the office network or the VPN.

1. Set up the key you were sent

When the sync bot invited you, it created your boxes and sent you a Bitwarden Send link containing your private SSH key. Open that link, save the key, lock it down, and point ssh at it:

mkdir -p ~/.ssh
# paste the key from your Bitwarden Send into ~/.ssh/cuda-dev-kvdb
chmod 600 ~/.ssh/cuda-dev-kvdb

Add an entry per host to ~/.ssh/config:

Host cuda-dev2-kvdb
  HostName 192.168.2.206
  User dev
  IdentityFile ~/.ssh/cuda-dev-kvdb
  IdentitiesOnly yes

2. Connect

ssh cuda-dev2-kvdb

3. Work inside tmux

tmux keeps your session running on the box even if your laptop sleeps or your connection drops — start everything inside it:

tmux new -s work

4. Run Claude — and pick your model

claude

On first run Claude asks to trust the folder — say yes. Then choose your model with /model:

• Opus — most capable; use it for real development work.
• Default (Sonnet) — great for everyday tasks and lighter planning or analysis.

Then just talk to it:

❯ hi
● Hi! How can I help you today?

5. Disconnect and resume

Your session lives on the box, not on your laptop. Detach with Ctrl-b d, log out, and your work keeps running. Reconnect later and pick up exactly where you left off:

ssh cuda-dev2-kvdb
tmux attach -t work