The Gwydion Dylan developers use a wide range of tools to develop source code. The following is a set of helpful links and snippets of information to get you up to speed in these disparate environments:
The most important tool for any developer (aside from the compiler!) is the editing environment. Dylan is well-supported by a number of tools, both Free and commercial.
Most developers use one of the various Emacs flavors. We include a full Emacs editing mode in the standard source release. Look for it in the src/tools/elisp directory.
At least one developer is likes to use Vim. Vim comes out-of-the-box in Version 6.2 with Dylan editing and indentation support.
Several of the developers use Metrowerks CodeWarrior. A plugin is available (in the main source distribution) to use CodeWarrior as a full Dylan IDE.
The premier Dylan environment. Though this tool set does not currently support Gwydion Dylan natively, it is an excellent Windows (and Linux) development platform for Dylan development.
Peter Norvig's LTD tool can convert legacy code from Common Lisp to Dylan, or at least greatly reduce the amount of manual labor required.
This powerful GNU program can format source code, convert between various page formats, and render HTML-ized versions of source code. We wrote a template so that Enscript can render Dylan sources. We use this plugin behind the scenes to power our installation of ViewCVS.