Jterm

• September 2, 2026 A QR Code on a Text Screen: Pairing Phones to a BBS Without a Login

  There’s a moment in every mobile-client story where the design gets embarrassing. Your BBS just grew a beautiful native iOS app — SwiftUI, an …

• August 31, 2026 Lite Emacs in Your BBS: The Key Bindings That Make Phosphor's Text Fields Work

  If you’re the kind of person who reaches for Ctrl+A to jump to the beginning of a line, or Ctrl+K to delete everything from the cursor to the …

• August 15, 2026 Live Spellcheck in a Terminal: Yellow Highlights, No Popups

  Every modern editor highlights misspelled words as you type. Squiggly red underlines in Word, yellow backgrounds in Google Docs, dotted lines in VS …

• August 14, 2026 Ghost Text Completion: Bringing Modern Editor UX to the Terminal

  If you’ve used VS Code, fish shell, or Google’s search bar, you’ve seen ghost text — that dim, semi-transparent suggestion that …

• August 12, 2026 Animated Borders: Living Frames in a Terminal UI Toolkit

  A border in a terminal UI is usually a static thing. Four corners, four edges, drawn once and forgotten. Box-drawing characters sit there like a …

• August 12, 2026 Designing Reusable Config Screens: From Vertical Labels to Table Layout

  Every config screen in Phosphor BBS used to be a snowflake. SystemConfigScreen had its own layout. AiConfigScreen had its own layout. They looked …

• July 30, 2026 Declarative UI: Building Terminal Screens with Widgets in Phosphor

  Most BBS systems render screens the hard way: imperative code that clears the terminal, prints line by line, and redraws on every update. It works, …

• July 30, 2026 Screenshots

  The Terminal Aesthetic

  Phosphor doesn’t just look retro. It IS retro — a real terminal application running on jterm, a JVM-based terminal …

• July 28, 2026 ANSI Sprites: Animation in a Terminal UI Toolkit

  A terminal is a grid of characters. Each cell holds one glyph, one foreground color, one background color. That’s it. There are no pixels, no …

• June 21, 2026 Terminal Animations: Starfields, Warps, and Living Backgrounds

  A BBS login screen used to be a static ASCII banner. You’d connect, see a logo made of text characters, type your username and password, and …

• June 17, 2026 jterm: Building a Terminal UI Toolkit in Pure Java

  Every BBS needs a terminal. But not just any terminal — a fast one, with per-character styling, double-buffered rendering, and a widget library that …