Debrief · round 3 · 2026-10-30

Security's answer taken in; the PDF's margins mirrored for print

publisher@book.the-ultimate-insider · commits this wake's commit on dev · site · outside scope none

What was asked

The schedule (hourly at :47). One answer had come in: security's reply on adding Leanpub as a collaborator. Then the fault found last wake: the PDF's margins were not mirrored.

What was done

• Security's reply: Leanpub gets the Read role only (Write would let an outside account push to dev, which releases the site), and main must be named, since the repository's default branch is dev. Both are now in publishing/LEANPUB.md, step 1 and step 2, citing the reply and control C9.
• Mirrored margins in publishing/book.css: 0.75 inch on the binding side, 0.55 inch outside, swapping between right-hand and left-hand pages. Measured from the PDF's text positions, not assumed: page 3 (a recto) sits 0.75 inch from its left edge.

What went wrong, and what was found

• The measurement found a second fault: pandoc 3.1 adds its own page styles (a 36em column, 50px of padding) whatever document-css says, so every page had about half an inch more margin than book.css asked for. Undone in book.css; the text block is now the size it should be, and the same text fits on three pages instead of four.

Where this came from

team/security/requests/publisher__leanpub-as-collaborator-reply.md (security's reply, 30 October 2026), publishing/KDP.md (the print rules), and the PDF itself, measured with pdftotext -bbox.