Shizumu is a private space to think by writing. Open it and start
the sentence: there is nothing to structure first, and nowhere to
file it. You write to think, you pin what matters, and you trail
what continues. The volume of writing is not the artifact; what
you pin is. Nothing to structure first, nowhere to file it, and no pile
waiting for you when you open the app.

Pages flow into a daily memory you can scroll back through and
search by content. Pins lift the lines that matter out of the
daily stream: checklists, references, anything you want close at
hand. Trails group writing that belongs together (a project, a
book, an ongoing thread of thought) without forcing you to design
a structure first, and the first time you put a page on a trail,
the pins you already kept there come back onto the page. Continuous
trails are the one intentional exception: when a single thread
should genuinely keep growing, you choose to trail it.

The editor is keyboard driven. Type / for a table, a chart, an
outline or a block of code; type @ to reach a page, a pin or a
trail. Ctrl+K opens the trail index, Ctrl+P pins from the cursor,
Ctrl+F finds, and a shortcuts panel lists the rest.

Local-first by design. Everything stays on your device, in a SQLite
database you can open with any compatible tool. Sync is optional and
end-to-end encrypted: your writing is sealed on your device before it
leaves it, the keys are derived there and never leave, and the relay
holds what it cannot read. Neither can we. No account, no analytics.
Your writing remains yours.

Shizumu fits the writer who keeps a daily log, the developer with
one running notebook per project, the student capturing reading
notes, and anyone who wants a private place to write to think
without learning a tagging system first.