With over 3,600 GitHub stars and a philosophy of deliberate simplicity, OliveTin eliminates the need for SSH sessions, admin panels, and complex automation platforms by letting you define shell commands in a YAML config file and access them as clickable buttons through a clean browser interface. The Go binary consumes only a few megabytes of RAM, running on everything from tiny ARM and RISC-V devices through Linux VMs, containers, macOS, and Windows. Each button executes a predefined shell command with optional typed arguments that render as dropdowns, text fields, and validated inputs, preventing free-form command entry while giving users controlled access to server operations. Access control lists define exactly who can view or run each action — guests, family members, or junior administrators see only the buttons they are permitted to use. Entity templates generate actions dynamically from lists of hosts, containers, or other resources, creating one template that produces many buttons without manual duplication. Flexible triggers extend beyond browser clicks: cron schedules, webhooks, calendar file events, and filesystem watchers run actions automatically when conditions are met. Authentication supports OAuth2, JWT, and header-based methods for integration with reverse proxies and identity providers. Dashboards organize actions into folders and fieldsets for clear navigation across dozens of commands. No plugin system, no extension marketplace, no premium tiers — every feature ships in the single open-source release. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.