Show HN: Babylog – baby tracker built with OpenClaw from a hospital room

Back to stories Open in a window
Article news.ycombinator.com

Show HN: Babylog – baby tracker built with OpenClaw from a hospital room

Hey HN! I built Babylog (https://babylog.chand1012.dev) — a simple baby tracker for logging feedings, diapers, and naps — entirely from my wife's hospital room using an AI coding agent.

My wife's water broke the day before her due date. After 18 hours of labor and an emergency c-section at 3am, our son was born. When a nurse asked "do you know what time he ate last?" and we had no idea, I knew I needed something to track it. But I didn't bring my laptop.

I had OpenClaw set up on a home server, accessible via Telegram. So I built the whole thing from my phone — planning the architecture, writing code, deploying to Cloudflare Workers — all through chat.

Stack:

• React + Vite + React Router frontend (PWA) • Hono backend on Cloudflare Workers • Cloudflare D1 (SQLite) for storage • Retro UI component library • CI/CD via GitHub Actions The MVP deployed and worked first try — account creation, child profiles, diaper and feeding logging all functional immediately. My wife and I have been using it daily since.

What went well: Zero-to-working-app without touching a keyboard. The agent handled monorepo setup, API design, frontend, deployment, and even CI/CD pipeline creation.

What didn't: No migration system (the agent skipped proper DB migrations), context poisoning made initial Cloudflare deployment painful (~1 hour of fighting the wrong API endpoint), and I broke every security best practice by giving the agent my API keys directly.

Lessons learned: Scaffold your template and CI/CD first, then let the agent iterate on features. Blog post with the full story: https://dev.to/chand1012/i-built-a-baby-tracker-app-from-my-...

Discussion 1 comments · 2 points · chand1012 · 2026-02-16
Open on HN
Loading the discussion…

Domain filters

Stories from these domains are hidden from every list. Subdomains match too: blocking substack.com also hides danluu.substack.com.

    Help

    Keyboard

    j / k
    Move down and up the story list. The arrow keys scroll whatever has focus.
    Enter
    Read the marked story in the article reader.
    ]
    Read the next story in the same article-reader applet. Back returns to the previous story.
    p
    Pin or unpin the marked story, which keeps it in Pinned.
    n / N
    Move to the next or previous top-level comment in the window in front.
    c
    Collapse or expand that comment.
    f
    Hide or show the story list.
    Esc
    Close a menu or this help.
    Access key m
    Go to the menu bar. Most browsers take it with Alt on Windows and Linux, and Safari with Control and Option.
    ?
    Show this help.

    Windows

    Each story opens in a window holding its article above its discussion; drag the bar between them to share the room differently. A window can be moved by its title bar, resized from any edge, snapped to a half or a corner by dragging it there, maximised, or minimised to the bar at the foot of the page. Use Window > New reader window to open an empty reader, or a story row's Open in new reader window button to compare articles. Docked readers keep their articles when you select another story from the sidebar. Minimized readers can be restored and reused for their site. A window's Next story link reads on down the list in the same window.

    A link in a comment or an article to another Hacker News or Lobsters thread opens that thread in a window too. A link to a single HN comment opens the comment above its replies.

    While a story's window is in front, the Story and Discussion menus in the menu bar hold its commands: pinning, Next story, sorting, collapsing every thread, jumping to the first new comment. Each window also remembers where you were in its article and discussion, so a reload, or Back to a story that Next took you past, finds your place again. Closing a window forgets it.

    The whole arrangement lives in the address, so a bookmark or a shared link brings it back, and Back undoes the last change. Moving between Hacker News, Lobsters, their lists, Pinned and Find changes only the list, and leaves the windows open.

    The list

    The pin at the start of a row keeps the story in Pinned, and the cross at its end hides it. Pinned can be narrowed by words in the title, site or author, by source, and to the stories you haven't opened yet, and ordered by when you pinned them, by points or by comments; the filters are part of the address, so a filtered view can be bookmarked. Scroll past the end of the list to load more. Domain filters, in the View menu, hide every story from a site.

    Browsing view

    View > Windowed and View > Classic select the browsing view and save your default in this browser. Window view reuses a reader for each feed. Classic view opens stories and applets as pages. Open as a page and Open in a window are one-off actions that do not change your saved default. Direct page links always open as pages.

    Applets

    The Applets menu in the menu bar holds three tools, each a window of its own. Replies to me takes your Hacker News user name and lists the replies to your last thirty comments and stories, checking again every three minutes while it is open, and marking what is new since you last marked them read. Look up a user opens a profile on Hacker News or Lobsters, with their submissions and recent comments, as a commenter's name in any discussion does; the bar at the top of a profile looks up someone else in the same window, and Back returns to the one before. Who is hiring? filters the posts of HN's monthly hiring threads by the words you type.

    They read only what the sites publish to everyone, so none of them asks for a login, and your user name stays in this browser.

    Find

    Find takes any link and lists every time it was submitted to Hacker News and Lobsters, so you can read each discussion of it.

    About

    YAVCHN never sees your Hacker News or Lobsters login. The discussion is fetched from each site's public API; to vote or reply, follow the link above the discussion, or the arrow beside a comment, to the source's own site. Pins, hidden stories, filters and layout are kept in this browser only.

    Open source: github.com/paulmooreparks/yavchn. Built with PUDL.