Add permacomputer blog post & update writing style guide

CLAUDE.md

@@ -82,3 +82,10 @@ Git operations can be destructive to uncommitted work. Always preserve user's wo
 - After using a helper script, delete it from the working directory
 - Do not include helper scripts in git commits unless specifically instructed
 - Focus commits on actual content changes, not the tools used to make them
+
+## WRITING STYLE
+
+**Use "&" instead of "and" most of the time in posts**
+- Prefer concise ampersand (&) for connecting words & phrases
+- Example: "disrupt wheels & foster open collaboration" not "disrupt wheels and foster open collaboration"
+- This creates a more casual, punchy writing style that matches the brand voice