Credits¶
Tesserae is built on top of generously-licensed open source. If anything here is wrong or someone's missing, please open an issue.
Frontend assets bundled in this repo¶
| Project | Used for | Version | Licence |
|---|---|---|---|
| Phosphor Icons | Admin UI iconography (6 weights, regular, bold, fill, duotone, light, thin) | 2.x | MIT |
| Chart.js | Finance / weather / forecast / stats charts | 4.4.0 | MIT |
widget-bauhaus.css + widget-bauhaus-wx.css |
Shared widget design system: refined title bars, --c-* semantic tokens, --wx-* decorative tokens for the weather/sky family |
AGPL-3.0-or-later (this repo) |
Bundled fonts¶
All SIL Open Font License. Used in widgets, themes, and the admin UI;
live in plugins/fonts_core/static/.
| Font | Designer | Licence |
|---|---|---|
| Anton | Vernon Adams | OFL |
| Archivo | Omnibus-Type | OFL |
| Archivo Black | Omnibus-Type | OFL |
| Archivo Narrow | Omnibus-Type | OFL |
| Atkinson Hyperlegible | Braille Institute | OFL |
| Bebas Neue | Ryoichi Tsunekawa | OFL |
| Bodoni Moda | Indestructible Type | OFL |
| Crimson Pro | Sebastian Kosch | OFL |
| DM Serif Display | Colophon Foundry | OFL |
| IBM Plex Sans / Serif / Mono | IBM | OFL |
| Inter | Rasmus Andersson | OFL |
| JetBrains Mono | JetBrains | OFL |
| Jost | Indestructible Type | OFL |
| Lora | Cyreal | OFL |
| Manrope | Mikhail Sharanda | OFL |
| Outfit | Smith | OFL |
| Space Grotesk | Florian Karsten | OFL |
| Space Mono | Colophon Foundry | OFL |
Upstream protocols and reference clients¶
- TRMNL - the team behind the TRMNL
devices and the open BYOS protocol Tesserae's HTTP-pull path
implements. Tesserae's
trmnl_pngrenderer,/api/display,/api/setup, and/api/logendpoints exist because TRMNL published a documented protocol you can host yourself. The rotations feature is Tesserae's take on TRMNL's playlists concept. - Terminus - TRMNL's Laravel reference BYOS server. I aligned Tesserae's HTTP envelopes
- access-token flow against Terminus to make sure existing TRMNL clients (firmware, KOReader plugin) drop in without firmware changes.
- TRMNL BYOS specification -
usetrmnl.com's documented protocol that the
trmnl_pngrenderer +/api/displayblueprint implement. - KOReader trmnl-display plugin - Lua plugin running on jailbroken Kindles that paints frames over the TRMNL BYOS protocol. The Kindle Paperwhite 2 testing on Tesserae's TRMNL HTTP path leans entirely on this work.
Python dependencies¶
Pip dependencies aren't enumerated here, their licences travel with the
wheels and pyproject.toml is the authoritative source. The main ones,
for context:
- Flask, web framework (BSD)
- Pillow, image rendering pipeline (HPND)
- paho-mqtt, MQTT client (EPL / EDL)
- amqtt, embedded broker (MIT)
- Playwright, headless Chromium for the webpage / screenshot widget (Apache 2.0)
- waitress - production WSGI server (ZPL)
- pydantic, schema models (MIT)
- zeroconf, mDNS advertiser (LGPL 2.1)