Helping someone fix their computer should not start with a phone call full of instructions nobody can follow: ControlR puts every machine you look after into one browser tab. Install the agent on Windows, Mac, or Linux machines once, and they appear in your device grid with their status ready for action. Open a remote desktop session and see and control the screen as if you were sitting there, drop into a cross-platform PowerShell terminal when a fix is faster typed than clicked, browse the file system to fetch a log or drop off a file, or just open chat when a quick question is all that is needed. Devices are organized with tags, and access follows them: a technician sees the machines their tags cover, while roles decide who can install agents, manage installer keys, administer the tenant, or reach every device. Agent logs stream to the server in real time, which turns bug reports into something you can actually read. Run one tenant for your own fleet, or enable public registration and let each new account become its own isolated tenant, with the database keeping every tenant's devices and users apart. Sensitive settings can arrive through Docker Secrets instead of environment variables, and the whole server runs from a single compose file. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.