###### # # ####### ##### ###### # # ####### ###### # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ###### ####### # # ##### ###### ####### # # ###### # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ####### ##### # # # ####### # #The BBS is back. And it's yours.█
A modern, real-time, federated BBS with a custom scripting language, dual terminal + web access, and live reactive screens. Built on modern Java, Postgres or H2, and a love for ANSI art.
Phosphor runs on its own server. Not on AWS. Not on Google Cloud. Not on Big Tech infrastructure.
No algorithms deciding what you see. No engagement metrics. No data harvesting.
No ads. No tracking. No "your data is the product."
And with MeshCore LoRa, it federates over radio — no internet needed.
Just a BBS. Run by people who remember when the internet was ours.▊
Features
⚡ Phosphor Language
Customize everything — menus, boards, screens, games, themes — without recompiling or restarting. Write .phos files, save, see changes instantly.
Learn more →🖥️ SSH + Telnet + Web
Connect via SSH (port 2222), telnet (port 2323), or web browser. Same event bus, same data, same users. Real-time sync.
Learn more →🌐 Federation
Multiple BBS nodes sync across the internet. A post on one node appears on another in real-time. Boards, mail, and custom resources all federate.
Learn more →📡 Reactive Everything
Screens update live when data changes. New mail? Inbox updates instantly. No refresh key, no polling, no logout/login. Every screen is a live view.
Learn more →🔧 User Scripts
Regular users write their own event handlers. Mail filters, auto-replies, personal chat macros. Sandboxed to their own session. Classic BBS culture, reborn.
Learn more →🎮 Door Games
Write games in the same language as the BBS. Save/load state, scoreboards, ANSI art per room. Shareable as .phos files.
Learn more →📡 MeshCore LoRa
Federation without internet. Nodes sync over LoRa radio — no ISP, no cell tower, no cloud. Off-grid BBS networking. The ultimate counter-culture feature.
Learn more →Live Stats
Latest Dev Log
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July 31, 2026
Federated BBS: How Phosphor Makes Multi-Node Sync Declarative
Every BBS in the 80s and 90s was an island. Your callers dialed your node. Your boards lived on your machine. If you wanted to share content with …
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July 31, 2026
Phosphor Progress — From Parser to Federation
Twenty-nine commits. Six phases. One language. Here’s where Phosphor stands after the most intense development sprint yet.
The Journey So Far …
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July 30, 2026
Building a Lexer and Parser for a BBS Programming Language
How do you build a programming language for a BBS? You start with the same tools every language uses: a lexer to break source code into tokens, and a …