Run every TV, menu board, kiosk, and video wall from one browser dashboard with ScreenTinker, a digital signage CMS you host yourself, with no per-screen license fees. Players cover Android TV, Fire TV, Samsung Tizen, LG webOS, Amazon Vega OS, Roku, Raspberry Pi, Windows, ChromeOS, and any web browser. Upload images and video, turn each PDF page into a slide, or design animated decks in the slide editor with templates, optional voiceover, a music bed, and an optional AI designer that works from a prompt using your own model endpoint. Widgets add clocks, weather, RSS tickers, moderated social walls, live IPTV streams, and iCal or JSON data bound straight into a slide. A weekly calendar handles recurring schedules, priorities, and time zones, and Preview at shows what a given screen will play at any chosen moment. Group screens to push playlists and bulk commands, split displays into zones, or join several panels into a video wall with bezel compensation. Live remote control, CSV proof-of-play reports, and offline email alerts keep a fleet in check, while web and Android players cache content and keep playing through outages. Workspaces, six role levels, optional approval before publishing, OIDC single sign-on, white-label branding on your own domain, and a scoped REST API serve agencies and larger teams. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.