ED. 2026 · MMXXVI
A small, private OS for one

A quiet cosmos,
kept at the edge.

Credentials, notes, OTPs, and writing — kept close, encrypted by default, deployed to Cloudflare Workers. Built by lifei as a single-user platform for the things that matter quietly.

localShanghai
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§01 — Modules

What lives inside

Vault01

D1 · KVAES-GCMzero-knowledge

An encrypted credential and OTP vault. Every secret is sealed client-side before it ever touches the edge — the server only ever sees ciphertext.

secretsunlimitedopen module

Press02

MarkdownRSCimage hosting

A Markdown-first blog with native image hosting, draft previews, and a writing surface that gets out of the way. Plain text in, plain HTML out.

postsliveopen module

Notebook03

inboxfull-textbookmarklet

A frictionless inbox for things you want to remember. Save from any browser with the bookmarklet — full-text search surfaces it again weeks later.

itemssavedopen module

Atrium04

scheduledgithub syncrss

Quiet automation. Schedules, GitHub sync, RSS pipelines — the small chores you forget to do, handled at the edge on a cron.

tasksrunningopen module
§02 — Writing

Recent notes

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§03 — Now

Doing what lately

building

A new editor for Cosmos, with split-pane preview and inline footnotes — the way writing should feel.

reading

The Master and Margarita — Bulgakov, slowly, in bed.

listening

Shostakovich — String Quartet No. 8, on repeat.

§04 — Contact

Say hello

I read every message I receive. Write me about tools, books, or quiet ideas — anything worth a slow reply.

cosmos · a personal OS, made by lifei.
deployed on cloudflare workers·monogram  ·© 2026·v1.0.0