Remote sandbox environments for learning and experimentation — without setup or cleanup. Launch fresh Linux VMs, Docker hosts, or Kubernetes clusters in seconds, publish ports, share terminal sessions, and connect over SSH.
Your perfect base playground. Create purpose-built sandbox environments by choosing up to five VMs with custom root filesystems and organizing them into any number of local networks.
Try Shell Gym - an interactive Linux command-line trainer - in a ready-made Ubuntu VM: daemon running, web UI open, sample learning path loaded.
A ready-to-use NixOS server for exploring the full Nix experience without installing it on your own machine.