SealSkin is a self-hosted browser isolation platform that runs desktop applications in isolated containers on your server and streams them to any browser or phone, so links, files and downloads open remotely and nothing from the web ever executes on the device in front of you. Right-click a link, send a download, or drop a file from your local browser through the extension, and it opens in a fresh container on the server; close it and nothing is left behind, or keep a persistent home directory for work you return to. The catalog holds more than a hundred applications: browsers, office suites, IDEs, media editors, emulators and 3D tools from LinuxServer.io images, plus any Selkies-compatible image you add, with NVIDIA and DRI3 GPU acceleration for demanding workloads. Files stay on the server behind a file manager with chunked uploads, intercepted downloads, and password-protected public share links. Launch any app into a collaboration room with chat, voice and video, gamepad slots, and hand-over of mouse and keyboard control. Administrators brand the web app, manage users, groups, application keys, VPN profiles, and audit logs, and can route a session out through a WireGuard or OpenVPN exit at launch. Servers cluster with shared users and applications and no master node, and one manifest runs the whole thing on Kubernetes. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MPL-2.0 licensed.