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An anonymous textboard (BBS) engine written in Common Lisp. It is a high-performance, modern clone of the original MIT Scheme SchemeBBS (which ran behind dis.4chan.org and world4ch /prog/). Features
Seamless SchemeBBS Layout: Displays threads, index lists, and posts inside definition lists (<dl>, <dt>, <dd>) exactly conforming to the original SchemeBBS style. Single Trailing Forms: Conforms to the original textboard paradigm where a single posting form is rendered at the very end of the thread (no per-post forms). Comprehensive Formatting Support:
Bold: **text** -> <b>text</b> Italic: __text__ -> <i>text</i> Monospace: `text` -> <code>text</code> (Uses the standard backtick notation) Spoilers: ~~text~~ -> <del>text</del> Blockquotes: Lines starting with > are rendered as <blockquote> blocks. Post References: >>7 are dynamically hyperlinked to jump anchors inside the thread page. Direct Image Link Previews: Direct links to images (.png, .jpg, .jpeg, .gif, .webp, .bmp) are automatically converted into elegant clickable image previews. Standard URLs: Standard URLs are automatically formatted as standard hyperlinks.
Dynamic Board Headers: Centered and left-aligned board listing headers (e.g. [ foo | prog ]) are scanned and displayed dynamically at the top of every page. Theme Preferences (Cookies): Choose between multiple themes (default, classic, dark, mona, no) on the /board/preferences page.
Selections are stored inside browser cookies (theme) and persistent. Zero JavaScript Required: The application is completely server-rendered. Local Qlot Sandbox: Locked sandbox dependencies pinned via qlfile to ensure backwards compatibility across environments. 29-Assertion Test Suite: Comprehensive test coverage verifying cookies, routing pipelines, and formatting rules.
Getting Started Prerequisites You must have Roswell and Qlot installed: # Install Roswell # (Follow Roswell platform instructions)
# Install Qlot ros install qlot Installation Clone the repository and install dependencies locally: # Fetch and lock dependencies locally qlot install Running the Server Start the Hunchentoot/Clack server: make server The server will boot and listen locally on port 8222. Running Tests Execute the automated Parachute test suite: make check Configuration You can configure the server using environment variables:
SBBS_DATADIR: The directory where board S-expression database files are stored (default: data/). SBBS_LOCKED_BOARDS: A comma-separated list of boards that should be locked in read-only mode. New threads cannot be created and comments/replies cannot be posted to these boards (e.g., SBBS_LOCKED_BOARDS=foo,bar). The posting forms will also be hidden on the frontend of these boards. SBBS_ADMIN_USER: The username for the admin panel (default: admin). SBBS_ADMIN_PASSWORD: The password for the admin panel (default: superchanner).
Software Stack
Lisp: Common Lisp (SBCL) loaded via Roswell. Web Server: Hunchentoot, Clack, Lack. HTML Templating: cl-who (HTML generation). Data Store: S-expression files saved inside plain-text files under data/sexp/.