Solo Newsletter OS

Solo Newsletter OS is a digital template pack (ZIP, 8 files) for solo creators who want to publish a newsletter every week without reinventing their process. It includes a 4-week content calendar (Markdown + CSV) with four rotating angles, 100 original subject lines in 9 types, a pre-publish/publish/post-publish issue checklist, a KPI tracker (CSV + Excel), a one-issue launch SOP, and a 30-minute setup README. Tool-agnostic: works alongside Beehiiv, Buttondown, Kit, Substack or any platform. Free sample (10 subject lines + Week 1 of the calendar, no email needed): https://solo-newsletter-os.soloearn.workers.dev/sample. One-time $39, paid as 39 USDC on Base. Not a course; no growth or income guarantees.