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News
150ms Taker Delay and Volume-Tier Limits
2+ day, 20+ hour ago (351+ words) Part 2 pinned the settlement target: 60s Chainlink TWAP. Part 3 is the matching layer. A correct P(up) still dies if the venue changed how taker orders are allowed to race. Add the older delay-lock behavior: once a taker order enters the…...
I checked dozens of UK local business websites by hand. Here's what actually breaks, and the tool I built to do it for me
6+ day, 7+ hour ago (820+ words) I'm Alex, 19, Ipswich. For the last month I've been doing something tedious: taking a UK town and a trade - "hairdressers, Wakefield", "accountants, Bristol" - opening every business's own website, and writing down what's wrong with it. Not "the design is dated…...
The Health Check That Watched the Wrong Thing
3+ week, 6+ day ago (554+ words) The last post ended on a promise: background workers fall into the same correlated-failure trap as request services, from a different angle. This is that angle, and it starts one level earlier: a health check that reports green while the…...
Compact Video Metadata Serialization With Protobuf Across Services
1+ mon, 5+ day ago (630+ words) The byte count is the obvious problem, but it wasn't the expensive one. Three things hurt more than payload size: Protobuf addresses all three at once: a compiled schema, explicit integer widths, and generated marshalling code that doesn't reflect at…...
AV2 shipped its 1.0 encoder. Here's what to actually run in your pipeline instead.
1+ mon, 1+ week ago (333+ words) If you've been through the AV1 rollout, this rhymes exactly. So let's spend the effort where it pays off in 2026. Before touching codecs, find out what your encode boxes support. FFmpeg is the source of truth. If you see av1_nvenc, av1_qsv, or av1_vaapi, you…...
Writing a million-row.xlsx from Dart without running out of memory
1+ mon, 3+ week ago (408+ words) An FFI wrapper over libxlsxwriter, and the memory numbers that made me reach for it. I had a report endpoint that exported a table to.xlsx. It worked in testing. Then a customer with 400,000 rows hit it and the container…...
CSV is plain text until a spreadsheet guesses: preflight risky cells with PlainCell
1+ mon, 3+ week ago (558+ words) A CSV file can preserve every byte you exported and still look different after somebody opens and saves it in a spreadsheet. The problem is not always a broken parser. Spreadsheet applications deliberately interpret text during import. Depending on the…...
I needed to read an old.xls file in Node and it was harder than it should be
2+ mon, 6+ day ago (204+ words) A few weeks ago I had a boring task: read some old.xls files (the Excel 97–2003 kind) and pull the numbers out. I figured this was a solved problem in 2026. It wasn't, quite. ExcelJS, which most people reach for, only…...
How Microsoft Excel Quietly Breaks Your JSON Imports (And How to Fix It)
2+ mon, 1+ week ago (422+ words) If you have ever built an application or pipeline that accepts CSV uploads, you have probably run into mysterious parsing errors. Everything looks perfect in plain text, but your automated scripts still throw a fit. The hidden culprit? Microsoft Excel's…...
Convert a JSON API Response to Excel: 3 Ways (No-Code, Python, Power Query)
2+ mon, 2+ week ago (252+ words) You call an API, get back JSON, and someone non-technical asks for it "in Excel." Here are three ways to do that — pick based on whether it's a one-off or a repeatable pipeline — plus the part everyone trips on: nested…...