dogwalk

22 posts

Dogwalk

Oct 06, 2026

Dogwalk: The Timezone Shift the Client Would Have Noticed First

Pinning sqlmodel, a single time helper, and the next-walk hero fix — the tz-aware release from 10/05.

The Ceiling I Never Wrote

A pip install fixed it. Then a measured bisect showed the line between working and breaking sat in a dependency, not in my code. And along the way, twelve copies of a five-line function became a single helper.

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dogwalk python dependencies

The coverage zone that doesn't count people

Dogwalk

Sep 16, 2026

The coverage zone that doesn't count people

Dogwalk's /explorar page gained coverage zones, and the first version carried the link between walker and region on a public page that needs no login. The fix wasn't hiding a field: it was deciding the zone only holds aggregates — and turning the test that required the data into one that requires its absence.

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dogwalk privacy mapbox-gl

The captcha that took the whole login down

Dogwalk

Sep 16, 2026

The captcha that took the whole login down

A single config line with a placeholder where the key should be killed production login and signup for almost nine hours — and the real key existed nowhere at all. The story of the best-intentioned lockout I ever shipped, and of the doctor that diagnoses a pair without ever seeing the secret.

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dogwalk security secrets

Dogwalk

Sep 15, 2026

The names Windows refuses to accept

A file called NUL, a router called aux.py and a symlink that only exists on Linux: three files that slipped into Dogwalk without resistance and broke git status on every NTFS clone. The root cause is almost always the same — .gitignore does not override a file that is already tracked.

The WebSocket that shook hands twice

A week after fixing the Dogwalk endpoints that refused to connect, I learned a repeated handshake is worse than none: the second accept() killed the connection right after it opened. And the first fix still let a dead socket into the room.

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dogwalk websocket starlette

The app that makes it to the home screen

Dogwalk

Sep 05, 2026

The app that makes it to the home screen

PataPass was a website wearing an app costume — and the browser made that obvious at the worst possible moment: inside an elevator with no signal. The story of Phase 4F: an install banner driven by beforeinstallprompt, an offline page served by the service worker, and the decision to never cache HTML.

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dogwalk progressive-web-app service-worker

Dogwalk

Sep 02, 2026

The F5 that logged the walker out

The status button finally worked within the session — but an F5 wiped it all: a reload brought the walker back offline for the entire system. The direct sequel to the ghost button: real persistence of the online status, from the frontend down to the profile PATCH.

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dogwalk react fastapi

The button that said it was online — and did nothing

Dogwalk

Sep 02, 2026

The button that said it was online — and did nothing

The walker toggle 'Go Online' rendered, animated, and even changed color. But the handler was an empty function: the state never left 'online'. The story of how a test loop caught a ghost button and gave back real online status.

Dogwalk: the backup that lied — a 786KB truncated tar hidden by 2>/dev/null

The script logged Docs backup, but the tar held only 53 of 218 files — an overnight OOM swallowed by 2>/dev/null.

The WebSocket that never shook hands — and the 5 endpoints that went silent

All Dogwalk WebSockets returned HTTP 500 on handshake. The app ran, the database responded, but real-time login, chat and walk tracking simply wouldn't connect. The cause: a receive_text() called without the accept() Starlette requires.

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dogwalk websocket fastapi

Dogwalk

Aug 01, 2026

The Dogwalk story — from pet marketplace to CI/CD with 1456 tests

970 commits, 1456 tests, Stripe Connect, Open Design, and the saga of turning a pet marketplace into a platform that doesn't break on deploy.

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dogwalk ci-cd testing

Dogwalk

Jul 25, 2026

Dogwalk — 3 Bugs, 1 Commit, 1379 Tests

How a public endpoint that returned 401, a bundle that crashed, and 42 console errors became a single commit

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dogwalk debugging react

Dogwalk

Jul 21, 2026

Dogwalk — the CI/CD debugging spiral

YAML indentation, missing dependencies, tests that need a running server — the classic pipeline debugging spiral.

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ci-cd python github-actions

Dogwalk

Jul 16, 2026

Dogwalk — updates and next steps

Exploring the current state of Dogwalk — lessons learned, challenges and discoveries.

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dogwalk update progress

E2E tests with Playwright — the quality turnaround

Dogwalk

Jun 15, 2026

E2E tests with Playwright — the quality turnaround

How end-to-end tests transformed quality and confidence in Dogwalk's development — the real story of a stack that learned to test itself.

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dogwalk playwright testing

First steps — infrastructure and the first lines of code

Dogwalk

May 28, 2026

First steps — infrastructure and the first lines of code

After the idea came the hardest part: getting your hands dirty. How I chose React, Vite and FastAPI to build Dogwalk.

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dogwalk infrastructure beginning

Dogwalk

May 25, 2026

First Dogwalk deploy — Vite + Cloudflare Pages

After weeks of coding, it was time to put Dogwalk online. The first deploy was a mix of euphoria and frustration — Vite + Cloudflare Pages.

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dogwalk deploy cloudflare

Dogwalk

May 22, 2026

FastAPI + React — why I chose this stack for Dogwalk

Exploring the stack choice — lessons learned, challenges and discoveries.

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dogwalk fastapi react

Dogwalk

Apr 24, 2026

The beginning of Dogwalk — when I decided to create a pet marketplace

It all started with a simple need: finding trusted dog walkers for my own dog. That's how the idea for Dogwalk was born, a pet marketplace that now serves hundreds of tutors.

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dogwalk marketplace pets