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Debugging RTK GNSS integration: ports, baud rates and protocol direction (ArduPilot / PX4)
1+ hour, 32+ min ago (688+ words) We build Septentrio-powered GNSS receivers at UAV GNSS — so the message "I wired it up, the port is open, and the autopilot still says no fix" is the one we get most often. In our experience it is almost never…...
PostgreSQL Will Let You Invent a Type, Right Up Until It Asks for a C Compiler
2+ hour, 49+ min ago (41+ words) A partner feed lands a million order rows a day, and the order date arrives as 03/15/2021. Someone stores it in a text …...
Why I Built Another In-Memory Cache for Go
7+ hour, 41+ min ago (1194+ words) There are already several good in-memory cache libraries for Go. So when I started building pacecache, the obvious question was: I wasn't trying to build a cache that would be universally better than every existing alternative. Cache design is a…...
NiceTryGPT: Less pattern matching. More actual hacking.
7+ hour, 53+ min ago (23+ words) I built NiceTryGPT, an open-source project for CTF authors who want to make cheap LLM shortcuts less... Tagged with cybersecurity, opensource, security, showdev....
Building a development environment for Monkey: Part 1 - Syntax highlighting with Tree-sitter
12+ hour, 8+ min ago (1361+ words) Intro A few years ago on a quest of learning Go, I followed Writing An Interpreter In Go... Tagged with treesitter, syntaxhighlighting, customlanguage....
A library default cost me 43x throughput
14+ hour, 58+ min ago (697+ words) Every SFTP file transfer in Termphin ran at exactly 1.2 MB/s. Not roughly 1.2 on average: the same figure on every server, over every network, for every file, large or small. A number that stable is not a network. Networks vary. A…...
What Zig Feels Like Coming from Go: A Systems Programming Comparison
17+ hour, 58+ min ago (678+ words) The difference is what they optimize for. Go optimizes for engineering velocity at scale — teams, services, microservices, distributed systems. Zig optimizes for control — predictable performance, zero hidden costs, and direct hardware access. If you've ever hit a GC pause in…...
How I Built Authentication in Go and React: Doing It Right
22+ hour, 57+ min ago (967+ words) Every tech blog will tell you the same thing: don’t roll your own auth. It makes sense not to do that for production applications with a large number of users, where more is at stake, and to use something like…...
OpenTelemetry tracing for Dagster, without monkeypatching or giving up @op/@asset
1+ day, 10+ min ago (177+ words) Dagster doesn't have a built-in way to get OpenTelemetry traces out of a run. There's an open issue on the main repo asking for it (dagster-io/dagster#11191), and a more specific one asking for trace/span IDs correlated into log…...
Go Concurrency Explained: How Goroutines Can Change the Way You Build Applications
1+ day, 57+ min ago (1036+ words) One of the first things that surprises developers when they learn Go is how easy it is to run work concurrently. And suddenly your function is running in a goroutine. But concurrency is much more than adding the go keyword....