今日已更新 215 条资讯 | 累计 25765 条内容
关于我们

开发者

编程技术、框架工具、最佳实践

7181
篇文章

共 7181 篇 · 第 202/360 页

The Verge AI

UK staff at the foundation that runs Wikipedia seeks union recognition

UK-based staff at the Wikimedia Foundation (WMF), the nonprofit that supports Wikipedia, are pushing forward with their unionization drive. On Wednesday, the staff sent a letter to WMF management requesting the organization voluntarily recognize the union. "The WMF has undergone a period of significant change in recent months, escalating workers' concerns over transparency, trust, and […]

Mia Sato 2026-06-25 00:51 👁 7 查看原文 →
Dev.to

ImageX hit 10 stars, got a contributor, and shipped 3 new features :) here's what happened

A couple weeks ago I posted about ImageX - a dumb little CLI that lets you edit images without googling "resize image online" for the hundredth time. If you haven't seen it, the tldr is: pip install imagex && imagex , a menu pops up, pick what you want, done. No flags to memorize, no syntax to look up - just arrow keys and enter. Everything runs locally on your machine - no uploads, no server ever sees your images, no browser,no ads. Honestly? Didn't expect much. But: 10 stars on GitHub 1 contributor already dropped a PR (Flip feature - thanks! :) A bunch of feature requests in issues So I kept building. What's new in v0.3.0 Three features, one fix: Grayscale / B&W - luminosity conversion or threshold-based true black & white. Slider for the threshold so you can dial in exactly how much black you want. Invert Colors - instant negative. Handles RGBA without destroying alpha. Flip - mirror horizontally, vertically, or both. (PR from a contributor!) Plus: version check on startup (tells you when to upgrade), and all operations now preserve EXIF/ICC metadata instead of silently dropping it. Yeah, that was a bug. Fixed. The code is still stupid simple NAME = " Invert Colors " DESCRIPTION = " Invert image colors (negative effect) " def run ( file , output_path , args ): img = Image . open ( file ) # ... invert logic ... img . save ( output_path ) return True Links GitHub: github.com/kushal1o1/ImageX PyPI: pip install -U imagex PRs welcome. You could write a feature in the time it took to read this.

Kushal Baral 2026-06-24 23:28 👁 5 查看原文 →
Dev.to

Using Zstd Frames to Egress Partial Parquet Files

Jump Tables, TLV Footers, and the Real Cost of Reading What You Don't Need You're paying for bytes you never read. A data engineer on a busy pipeline touches dozens of Parquet files a day: schema discovery, predicate pushdown, column pruning, metadata scrapes for a data catalog sync. In each case, the application needs maybe 200 KB of context from a file that is 4 GB on disk. Without a seekable archive format and a jump table to find the right frame, your HTTP client fetches the whole thing, and your cloud egress invoice reflects every unnecessary gigabyte. This post quantifies the problem, then walks through how HuskHoard uses seekable Zstd frames, a per-volume jump table, and TLV-encoded footer metadata to make partial egress a first-class citizen across multi-volume archives — disk, cloud, and LTO tape alike. The Problem, In Dollars S3 standard egress runs $0.09/GB. GCS is $0.08/GB. Even Cloudflare R2, which is free for egress from R2 to the internet , still costs you in latency and API call count when you cannot bound the range of bytes you need. Here is a representative read pattern for a cold analytics archive: Operation Bytes Needed Bytes Fetched (naïve) Ratio Schema discovery ~50 KB (Parquet footer) 1–8 GB (full file) ~1:16,000 Single column scan ~200 MB (one column chunk) 4 GB (full row group) 1:20 Data catalog sync (1M files) ~50 GB (footers only) ~4 PB (full files) 1:80,000 Selective restore (1 row group) ~128 MB 4 GB 1:32 On 100 TB of cold Parquet data with $0.09/GB egress: Full read for schema sync : 100 TB × $0.09 = $9,216 Partial read (footers only, avg 100 KB/file, 1M files) : ~100 GB × $0.09 = $9.00 Savings per catalog sync: $9,207 — 99.9% reduction Even a conservative column-scan scenario (pulling 15% of each file's bytes) cuts a $9,216 monthly read bill to $1,382 . The ceiling on savings is determined entirely by how precisely you can address the bytes you actually need. That precision is what frames and jump tables buy you. Zstd Frames: What They

Joichiro Mitaka 2026-06-24 23:26 👁 9 查看原文 →
Hacker News RSS

Registration

Article URL: https://www.winnipegsd.ca/student-registration Comments URL: https://news.ycombinator.com/item?id=48661195 Points: 4 # Comments: 1

bhn 2026-06-24 23:11 👁 2 查看原文 →
The Verge AI

8BitDo’s all-button controller gets a screen upgrade for customizations without an app

8BitDo announced a new version of its all-button Arcade Controller that debuted a little over a year ago. The new Arcade Controller Pro looks similar to 8BitDo's original with a leverless (or Hitbox) design that replaces joysticks with buttons for improved precision and responsiveness. The new Pro version comes with upgrades that include an even […]

Andrew Liszewski 2026-06-24 23:00 👁 4 查看原文 →