Built for e-ink screens, Tesserae composes calm wall dashboards from your calendar, weather, and Home Assistant data in a browser, then renders each frame at the panel's exact resolution. Lay out pages as a grid of cells or on a free canvas of widgets, text, and shapes, with a live preview. What you see is what paints. Dozens of bundled widgets cover weather, calendars, clocks, news, to-do lists, and photos, and a community catalog adds more widgets, themes, and templates. Frames are dithered to each panel's measured palette, so photos and gradients stay clean on Spectra 6 color, mono, and grayscale screens. One server drives a whole fleet. Each panel keeps its own dashboards, schedules, and rotations, and smart sync renders just before a battery panel wakes while quiet hours let it sleep overnight. Seeed reTerminal and XIAO panels flash from the browser, and Pimoroni Inky, Waveshare, M5Stack, TRMNL-compatible devices, and KOReader Kindles and Kobos work too. Inside Home Assistant it runs as a sidebar App. Home Assistant widgets show entities, history, energy, and cameras, and MQTT discovery turns each panel into a device with its frame, battery level, and signal. No account is needed, and update checks stay off unless you opt in. Ask Claude or any MCP client to lay out a dashboard, check a preview, and push it. 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.