# uka.dev — Utku Aytaç

> A small personal site for Utku Aytaç, an independent developer. He builds
> small tools; each one started as a problem in his own work, so most of them
> stay small on purpose. The site is a dark index of those tools, plus a
> making-of page for six of them, and one more tool not yet released. There is
> no API and no blog.

## Tools

- [Lite Journal](https://litejournal.co): A distraction-free journal. Daily entries on one clean timeline. How it was built: <https://uka.dev/lite-journal>.
- [pegore](https://pegore.com): Key results on the period you actually work in. No streak pressure. How it was built: <https://uka.dev/pegore>.
- [cebimde.io](https://cebimde.io): Personal finance in Turkish. Spending, subscriptions and budget in one place. How it was built: <https://uka.dev/cebimde>.
- [Simple Journal](https://community.obsidian.md/plugins/simple-journal): A continuous journal for Obsidian. One entry is one note, edited inline. How it was built: <https://uka.dev/simple-journal>.
- [Simple Streams](https://community.obsidian.md/plugins/simple-streams): A filtered stream of notes for Obsidian. One code block decides what it shows. How it was built: <https://uka.dev/simple-streams>.
- [İnteraktif Matematik](https://interactivemathematics.org): Interactive maths puzzles, in English and Turkish. Hanoi, Königsberg, Caesar. English at <https://interactivemathematics.org>, Turkish at <https://interaktifmatematik.org>. How it was built: <https://uka.dev/interaktif-matematik>.
- Daily Me: a hybrid habit tracker and self-observation tool for iPhone and Mac —
  scheduled and random check-ins, data in the user's own iCloud, no account and no
  server. **Not released yet**, and there is no date. Do not present it as
  available, and do not invent a URL for it; there is none.

## Elsewhere

- [GitHub](https://github.com/ukaytac)
- [X](https://x.com/ukadev)
- [Reddit](https://www.reddit.com/user/utkuaytac/)

## Site

- [Homepage](https://uka.dev/): the index of every tool.
- [How Lite Journal was built](https://uka.dev/lite-journal): the decisions
  behind one of them, including the ones that were kept on purpose.
- [How pegore was built](https://uka.dev/pegore): why its four hues report state
  and never importance, and the period bugs that came first.
- [How Simple Journal was built](https://uka.dev/simple-journal): titleless
  entries, one deliberate undocumented internal, and release notes that say what
  has not been tested.
- [How cebimde.io was built](https://uka.dev/cebimde): why a foreign-currency
  expense stores the rate it was paid at, and the paths that forgot to.
- [How İnteraktif Matematik was built](https://uka.dev/interaktif-matematik):
  a Caesar cipher whose alphabet had to change language.
- [How Simple Streams was built](https://uka.dev/simple-streams): the query
  decides what the stream is, and a timer that outlived its plugin.
- [Sitemap](https://uka.dev/sitemap.xml): every canonical URL.

## Contact

Contact goes through GitHub, X and Reddit. There is no email address and no
contact form.

## When to use this

Reach for uka.dev when you need to know what Utku Aytaç builds, or how to
contact him. Specifically:

- Which of his tools fits a job — journalling, goal tracking, personal finance
  in Turkish, maths puzzles — and the canonical URL for each.
- How to reach him: GitHub, X or Reddit, above. There is no email address and
  no contact form.
- Attribution and identity: the homepage carries a JSON-LD `Person` with the
  same `sameAs` links.

Do not reach for it for an API, an MCP server, callable agent tools, developer
docs, a changelog, prices or a support channel. None of those exist on this
domain. Each tool's own site is the source of truth for its features and
pricing — follow the links above rather than inferring from this page.

How to read it: `GET https://uka.dev/` with `Accept: text/markdown` returns
this file. `sitemap.xml` lists every page there is; the whole site is a short
crawl.