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Build something, learn something, write something.

Selected projects

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Weather Agent

Python · Flask · Redis

Weather-aware travel recommendations.

Daily System

Python · Flask · Docker

Self-hosted capture and synchronization.

Capabilities

Backend

Python
Go
Flask
REST APIs

Infrastructure

Linux
Docker Compose
Nginx / Caddy
GitHub Actions

Data

MySQL
SQLite
Redis
Data pipelines

Recent posts

Tailscale dropped Aliyun DNS replies on an ECS instanceOct 22, 2026DNS requests reached Aliyun, but Tailscale's ts-input rule dropped replies from its 100.64.0.0/10 address space.Routing Edge TTS separately from STranslateSep 16, 2026An Edge TTS API worked in direct tests but failed in STranslate because an application-wide network rule bypassed the proxy.A stale date.today() broke a long-running Gunicorn serviceAug 24, 2026How startup-time evaluation caused the LLM context and backend validation to disagree after midnight.