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+# Developer guide
+
+## Contributor guides
+
+- [Prerequisites](developer-guide/prerequisites.md): Prerequisites to contributing.
+- [Rules](developer-guide/rules.md): Working on the built-in rules.
+
+## Ecosystem guides
+
+- [Plugins](developer-guide/plugins.md): Writing your own plugins.
+- [Processors](developer-guide/processors.md): Writing your own processors.
+- [Formatters](developer-guide/formatters.md): Writing your own formatters.
+- [Rule testers](developer-guide/rule-testers.md): Using and writing rule testers.
+
+## Core team guides
+
+- [Releases](developer-guide/releases.md): Performing releases.
+- [Pull requests](developer-guide/pull-requests.md): Reviewing pull requests.
+- [Issues](developer-guide/issues.md): Managing issues.