SideBrain Field Notes
Honest playbooks for solo creators on X, Substack, Beehiiv, and Ghost. Written by an indie founder using the product daily.
X / Twitter2026-05-08· 3 min read
How to write an X thread that actually converts (5 frameworks I steal from)
Most X threads die at tweet 3. Here are five hook-to-payoff frameworks that pull readers all the way through, with examples and a checklist.
Newsletter2026-05-05· 4 min read
Newsletter subject lines that get 50%+ open rates (with 30 examples)
Open rate is the only metric that compounds. Here is the subject-line system I use across Substack, Beehiiv, and Ghost, with 30 dissected examples.
Side hustle2026-05-02· 3 min read
AI co-pilot vs content scheduler: which one actually grows a creator account in 2026?
Hypefury, Buffer, Typefully — they schedule posts. SideBrain plans, drafts, and tunes them. Here's the honest difference, and when each one wins.