Buffer

Just one day to go! What could it be? 👀

Brandon Green (brandon aka kid lightbulbs), a Staff Product Manager here at Buffer and founder of Unstream (Unstream: Support music artists directly), described his marketing strategy as “impulse posting.” Think of something, drop everything to write it, forget about it for two weeks.

So he built an automation that runs the whole thing:
⏰ GitHub Actions fires the job every Monday at 9 a.m.
🎵 His artist database and shipped-features log supply the raw material
✍️ Templates built on his own voice guidelines shape each post so it’s all genuine copy
📣 The Buffer API schedules the full week across Instagram, Threads, and Bluesky

The result: 21 posts a week across 3 platforms, zero manual triggers — and the content pool grows on its own as the product grows.

How he built it (and what you can steal even if your stack looks nothing like his) is all on the blog. Link in bio 🔗

Selling one Pokémon card means a listing, a description, photos, and a social post. Joe Birch (Joe Birch), a senior engineer here at Buffer, had over 1,000 to sell.

So he built a Mac app that runs the whole pipeline:
📸 He photographs cards in batches and drops a zip into the app
🃏 Claude reads each card — name, set, rarity, edition, condition
🛒 The listing goes live on his store via the WooCommerce API
📣 The Buffer API queues a post for every card, timed for when buyers are online

The social step is the part most sellers skip, and it’s the one that matters most. Card collectors don’t hunt marketplaces — they spot a card in their feed and click through. A listing nobody sees doesn’t sell.

The tally so far: 1,310 products listed, 1,000+ posts in his Buffer queue, and about $20 in total AI costs.

The full build breakdown on the blog, including his takeaways for selling anything physical. Link in bio 🔗