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| 🔗 Stories, Tutorials & Articles |
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| OpenAI Agent Builder: A Complete Guide to Building AI Workflows Without Code |
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| OpenAI’s Agent Builder drops the guardrails. It’s a no-code, drag-and-drop playground for building, testing, and shipping AI workflows - logic flows straight from your brain to the screen. Tweak interfaces in Widget Studio. Plug into real systems with the Agents SDK. Just one catch: it’s locked behind Pro, Plus, or Team tiers. |
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| Development gets better with Age |
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A longtime AWS insider, Werner Vogels, breaks down the shift from slow-and-steady software growth to the generative AI rocket ride. Capabilities soared. Guardrails? Not so much. No docs, no handrails - just launch and learn.
AWS didn’t chase the hype. It pulled a classic AWS move: doubled down on B2B. Gave customers model choice, privacy-first defaults, and automated safeguards out of the box. |
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| How I Block All 26 Million Of Your Curl Requests |
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A developer built a razor-sharp TLS fingerprinting and blocking tool - all in kernel space - with eBPF and XDP. It hooks into incoming packets, scrapes TLS Client Hello messages, and cranks out simplified JA4-style hashes from their cipher suite lists.
The fun part? It's running under tight stack limits, so the dev stuffed a custom O(n²) sort into the hash logic. Yeah - bubble-sort energy, in 2024. But it fits. For state management, it leans on eBPF maps as on-the-fly blacklists. No stack overflows. No userspace detours.
System shift: This isn’t just clever - it’s a trend. Real-time packet filtering is moving down the stack. Kernel-level signals. No more babysitting by bloated firewalls or load balancers. |
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| walrus: ingesting data at memory speeds |
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Walrus is a lock-free, single-node Write Ahead Log in Rust that rips through a million ops/sec and moves 1 GB/s of write bandwidth - on bare-metal, nothing fancy. It leans on mmap-backed sparse files, atomic counters, and zero-copy reads to get there.
Each topic gets its own line of 10MB memory-mapped blocks, stuffed inside 1GB files. Cleanup’s handled with checkpoint-driven deletion. No coordination overhead - just a lean async job runner and CPU-pinned writers keeping things moving. |
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| I'm Building a Browser for Reverse Engineers |
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A researcher rolled their own Chromium fork with a custom DevTools Protocol (CDP) domain - not for fun, but to surgically probe browser internals. It reaches into Canvas, WebGL, and other trickier APIs, dodging the usual sandbox and spoofing all the bot blockers they'd rather you leave alone.
It injects CDP hooks straight into runtimes you’re not supposed to touch (like OOPIFs) and pulls off auto-deobfuscation, request decoding, and live overrides. All that complexity gets surfaced through an Electron-based UI. |
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| Going down the rabbit hole of Postgres 18 features by Tudor Golubenco |
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PostgreSQL 18 just hit stable. Big swing!
Async IO infrastructure is in. That means lower overhead, tighter storage control, and less CPU getting chewed up by I/O. Add direct IO, and the database starts flexing beyond traditional bottlenecks.
OAuth 2.0? Native now. No hacks needed. UUIDv7? Built-in support for those time-sortable keys we’ve all been duct-taping together.
Virtual generated columns are the new default. Logical replication now includes them too. Vacuum got leaner. B-tree skip scans got smarter. You get faster queries, less bloat.
Even the wire protocol got an update - for the first time since 2003. Let that one sink in.
And temporal key constraints bring real support for time-valid data integrity. Timestamped reality checks, right in the schema.
Postgres always evolves slowly. But this one moves the ground. |
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| The 500x performance gap between Node.js version managers (and why you might not care) |
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Benchmarks show NVM slows shell startup by as much as 500x - especially in Zsh or cold-start workflows like CI and IDEs. The culprit? Bash scripts doing too much on every load.
Volta and FNM, both written in Rust, skip the slog. They're compiled binaries, so version switching happens fast - and startup stays snappy. |
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| Advanced PostgreSQL Indexing: Multi-Key Queries and Performance Optimization |
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| Advanced PostgreSQL tuning gets real results: composite indexes and CTEs can cut query latency hard when slicing huge datasets. Add LATERAL joins and indexed subqueries into the mix, and you’ve got a top-N query pattern that holds up—even when hammering long ID lists. |
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| Inside Husky’s query engine: Real-time access to 100 trillion events |
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SteamPipe just gutted its real-time storage engine and rebuilt it in Rust. Expect faster performance and better scaling.
Now runs on columnar storage, ships with vectorized queries, and rolls an object store-backed WAL. Serious firepower for time series data.
System shift: Another sign that high-throughput observability stacks are going Rust or going home. |
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