| ac | Hack the Arc compiler from Arc |
| list-writer | A writer for Arc lists |
| table-reader-writer | A reader / writer for Arc tables |
| defvar | Provide your own implementation for a global variable |
| dyn | Dynamic binding that works with exceptions, continuations, and threads |
| srv-mime | Fix mime types in srv.arc |
| erp | My favorite debug print macro |
| exit-on-eof | Exit Arc with eof (^D in Unix) |
| toerr | Send output going to stdout to stderr instead |
| json | JSON reader / writer |
| extend | Extend Arc functions |
| load-w/rename | Load an Arc source code file with renames |
| emacs-utf8 | How to convince Emacs to save .arc files in UTF-8 |
| nil-impl-by-null | Speculative patch implementing Arc's nil with MzScheme's null |
| parser-combinator-approach-to-json | a parser-combinator approach to parsing JSON |