Sarabellum
Blog
Working notes.
Building in the open: what shipped, what broke, what it cost, and what we got wrong. Not a content-marketing funnel — there are no “10 ADHD productivity hacks” here and there never will be.
No posts yet. The first real one is coming.
Post title, date and excerpt go here.
Post title, date and excerpt go here.
Post title, date and excerpt go here.
The plan
What we’d actually write about.
Not a content calendar. Just the things we already write down privately and might as well say out loud.
What the AI actually costs
Every one of Sara’s calls is metered — tokens, model, cost. The findings are genuinely surprising (the prompt is the bill; caching earns far less than everyone assumes), and nobody publishes real numbers. We could.
Designing against shame
Why the streak had to go, why heat doesn’t re-sort your list, why “overdue” is a word we don’t allow. The design decisions behind the thesis, with the arguments intact.
What broke this week
Real bugs, real causes, real fixes. Written up the way we’d want to read someone else’s, rather than the way a changelog pretends nothing was ever wrong.
Building an app with an AI
One person and a model shipping most days — what that’s actually like, where it’s brilliant, and where it confidently wastes an afternoon.
Want to know when there’s something to read?
No schedule, no drip sequence, no growth funnel. Just a note when something worth knowing ships.