Turn any Android phone into a programmable SMS gateway for your SaaS — no per-message fees, no carrier contracts, no vendor lock-in.

A researcher find that the Creative Sound Blaster Katana V2X accept unsigned firmware over Bluetooth without auth. Since the speaker already register itself as a HID device for volume control, an attacker can flash it remotely and turn it into a Rubber Ducky, injecting keystroke into ur PC from ~50 feet away. Vendor refuse to patch.

Linear feel fast not because of one trick, but a lot of small one compound together. The big idea: treat the browser DB as the source of truth, and the server is just a sync target. Mutation apply locally first, reconcile async. Add to that aggressive code-split with service worker precaching, granular MobX observables to keep re-render small, and animation only on GPU-composited properties.

A basic introduction to USB for people that don’t need to know what happens on the wire. If u ever want to talk to a USB device from ur own app without diving into kernel land, this is a nice starting point.

Postgres planner can make bad estimate when columns are correlated. Extended statistics let u tell the planner about those relationship. The post walk through the three flavor - dependencies, mcv, and ndistinct - with real example showing how each one fix a different kind of wrong row estimate.

Sourcemaps unlock some observability benefits but might expose your codebase. Check out how they work, and how to protect yourself.

A Go specific article, but it present a methodlogical though of process. We had a 4 GiB file that’s almost entirely zeros, exactly one non-zero int64 is hiding at offset Size - 8 (the last aligned slot). The task: find that offset, as fast as possible, in Go on Linux.

Have u ever feel annoying with the useless Music app on macOS, u would love this tool. Typically it will be under Tool, but this is require deep understand on how everything works. Strongly recommend to learn its code, especially about the rcd(short for Remote Control Daemon)

This is a fresh reading of RFC 9111 (2022), the latest iteration of the HTTP Caching standard. The standard defines the Cache-Control HTTP header as a way to prescribe how caches should store and reuse HTTP responses, with regard to not just the browser cache, but to any other intermediary caches, such as proxies and content delivery networks, that may exist between the client and the origin server.

Use the ss command as a modern, faster replacement for netstat to inspect IPv4 TCP and UDP sockets, listening ports, and connection states.