The daily ledger

Don't classify. Hallucinate!

Don't classify. Hallucinate! I still have quite a bit of older content on my blog that I never got round to tagging. My blog has 1,856 tags - likely too many to feed to an LLM in one go and say "which of these tags…

The Codebase Is the Agent's Working Environment

Agents generate code in seconds, so investing in code quality looks obsolete. My daily work with agents shows the opposite. Every session starts by reading the existing code, and its quality decides how productive the…

Idea: Alias as a common abstraction over Share and Reborrow

I have been thinking about the relationship between the proposed Reborrow work and the recent Share/cheap-clone ideas. I think there may be a useful common abstraction above them: (Updated full design here) unsafe auto…

Preparing for Change: Safe Switching over Sealed APIs

An exhaustive switch on a sealed type covers the permitted subtypes the compiler knows about; it does not cover future additions, which can cause MatchException at run time. API authors should document the expected…

Node.js Interactive 2026: A Recap

After Supper: Rewinding a Family Dinner Through Memory

This is a submission for Frontend Challenge - Comfort Food Edition, Perfect Landing What I Built I built AFTER SUPPER, an interactive landing page about comfort food, memory, and the people around the table. Instead of…

500 Blog Posts To Learn About Javascript

Let's learn about Javascript via these 500 free blog posts. They are ordered by HackerNoon reader engagement data. Visit the Learn Repo or LearnRepo.com to find the most read blog posts about any technology. "Not a real…

List Comprehensions, Generators, and the Matrix: When to Use Each

The Quest Begins (The "Why") I was refactoring a data‑processing script that read a CSV of user events, filtered out bots, turned timestamps into ISO strings, and dumped the clean rows into a new file. The original…

Kog: tối ưu GPU thường để tăng tốc suy luận LLM, không cần chip riêng

Originally published on NextFuture Nếu bạn từng đợi hàng giờ để agent như Claude Code trả kết quả, đó chính là vấn đề mà startup Pháp Kog đang nhắm tới — không phải bằng chip chuyên dụng như Cerebras, mà bằng cách tối…

AI agent báo 'xong' nhưng không chạy: framework 6 tầng vá lỗi

Originally published on NextFuture Bạn hỏi AI agent làm một việc, nó báo "xong", nhưng code không chạy. Bạn đổi model khác, vẫn vậy. Một kỹ sư làm việc với Claude Code, Codex và Cursor hơn một năm vừa công bố…

The file existed, so I assumed the check passed

A user sent me two clips and a screenshot. My video merge tool had run to 100%, said "Applying transitions…", and then thrown: FS error: readFile 'merged.mp4' The error is honest and useless. merged.mp4 does not exist.…

Eleven pages that read your own files in the browser. The hard part was what they refuse to say.

Drop a JPEG onto this page and it will read the quantization and Huffman tables straight out of your file's bytes and show you the numbers your camera or your phone or Photoshop used to round the picture. It does this…

Semantic search for 796 pages, with no server, no vector database, and no model at query time

Our site has 796 indexed pages of dense, cross-referenced, deliberately weird material: machine-checked proofs, live geology, a page that reads the quantization tables out of a JPEG you drop on it. Sorting that by date…

E2E Tests Without Brittle Fixtures: Generate Data on the Fly

Flaky Playwright and Cypress runs trace back, more often than anyone expects, to e2e test fixtures that quietly stopped matching the schema after last Tuesday’s migration. You have probably watched a Cypress test that…

I Built a Free Speaker One-Sheet PDF Generator (Because Canva Charges $15/month)

I Built a Free Speaker One-Sheet PDF Generator (Because Canva Charges $15/month) Stop paying $15/month for Canva Pro when you just need a clean speaker one-sheet. I was tired of Canva's subscription model — $180/year…

Explicit post-order hooks for ast.NodeTransformer

This is a proposal for the ast module in the standard library, to include a BidirectionalTransformer that extends NodeTransformer with leave_* dispatch after normal visit_* processing. class…

The Color Math Was Never the Slow Part

The first version of my image-to-Minecraft-blocks converter locked up the browser tab for long enough that I assumed something had crashed. I dropped in a photo straight off my phone, hit convert, and the page stopped…

A planet in a browser tab

Our site now has a chapter where you scroll a camera through low orbit, visiting the four places we operate from. It looks like it should weigh fifty megabytes. It ships in roughly 1.5, and it is built almost entirely…

I Built a Free Vacation Rental House Manual Generator (Because Hostfully Charges $30+/mo)

I Built a Free Vacation Rental House Manual Generator (Because Hostfully Charges $30+/mo) Stop paying $30+/month for Hostfully when you just need a clean welcome book for your Airbnb or VRBO listing once. I was tired of…

I Built a Free Screenplay & Script Formatter (Because Final Draft Charges $50–200/Year)

I Built a Free Screenplay & Script Formatter (Because Final Draft Charges $50–200/Year) Stop paying $50–200/year for Final Draft when you just need clean screenplay formatting. I was tired of Final Draft's subscription…