Capturing thoughts and reflections while coding.
This guide walks through setting up acme.sh with DNSPod to perform DNS‑01 validation, automatically obtain Let’s Encrypt certificates, and use hook scripts to upload them to Qiniu CDN, update HTTPS settings, and clean up old certificates, eliminating manual renewal steps.
Enabling IPv6 on an EdgeRouter X PPPoE link caused intermittent SSL time‑outs because the PPPoE MTU of 1492 conflicted with the client’s default MTU, and the router‑advertised link‑mtu overwrote the DHCPv6‑PD‑generated SLAAC prefix, stripping internal devices of a global IPv6 address; manually configuring both MTU and prefix resolved the issue.
This article walks through moving image storage from TiDB Cloud to Qiniu Cloud for a WeChat mini‑program, detailing a Rust + Actix‑Web backend that validates image format, deduplicates via SHA‑256 content‑addressable keys, creates upload tokens, performs idempotent multipart uploads, and builds hour‑aligned private download URLs with referer protection.
The author shares a step‑by‑step account of using AI to create a simple, version‑aware WeChat mini‑program with uniapp, optimize TiDB Cloud database latency, choose Rust for the backend, and apply practical security measures, emphasizing patience and lightweight design.
DeepSeek has launched the open‑source DeepSeek‑V4 series, offering Pro and Flash models with a 1 million token context window, a novel sparse attention mechanism, performance that rivals Opus 4.6 on coding and knowledge benchmarks, tiered pricing, and future cost reductions once Ascend 950 supernodes become widely available.
The Roo Code team announced the shutdown of its VS Code extension and a shift to the cloud‑based AI teammate Roomote, arguing that AI can now close the “error → fix → PR” loop autonomously, making traditional IDE plugins obsolete and moving code collaboration into shared Slack channels.
The Go team introduced a new uuid package to the standard library, offering lightweight functions for generating, parsing, serializing, and comparing UUID version 4 and version 7 values, integrating with database/sql, using a [16]byte type compatible with google/uuid, and providing detailed design rationale, implementation details, and a comparison with the existing third‑party library.
This article details a systematic performance test of Nginx 1.29.x’s new HTTP/2 upstream support, comparing HTTP/1.1, HTTP/2 with keep‑alive, and HTTP/1.0 baselines across various payload sizes, connection‑pool settings, and large‑header scenarios to determine when protocol upgrades yield real throughput or latency gains.
Go’s 2025 addition of the generic Hasher[T] interface to hash/maphash standardizes safe hashing by embedding a random seed throughout recursive calls, resolves previous design flaws, and provides clear guidelines for custom hashers, comparable types, and practical applications such as Bloom filters, all while ensuring performance and correctness.
This article analyzes why Docker builds of Rust projects on Ubuntu get stuck updating the crates.io index for several minutes, explains Docker layer cache invalidation and BuildKit differences, and presents a reliable cargo‑chef based Dockerfile that reduces build time to seconds.
