💥 Check out this insightful post from Hacker News 📖 📂 Category: 💡 Key idea: Memory safety and sandboxing are two different things. It's reasonable to think of them as orthogonal: you could have memory safety but not be sandboxed, or you could be sandboxed but not memory safe. Example of memory safe but not sandboxed: a pure Java program that opens files on the filesystem for reading and writing and accepts filenames from the user. The OS will allow this program to overwrite any file that the user has access to. This program can be quite dangerous even if…
🔥 Explore this must-read post from Hacker News 📖 📂 Category: ✅ Key idea: “Compiler Engineering in Practice” is a blog series intended to pass on wisdom that seemingly every seasoned compiler developer knows, but is not systematically written down in any textbook or online resource. Some (but not much) prior experience with compilers is needed. What is a compiler? The first and most important question is “what is a compiler?”. In short, a compiler is: a translator that translates between two different languages, where those languages represent a description of a computation, and the behavior of the computation in…
🔥 Explore this must-read post from Hacker News 📖 📂 Category: ✅ Here’s what you’ll learn: While we may not be travelling around on hoverboards or wearing self-tying shoes, a lot has changed between 1969 and 2019, and higher education and university are just two of those things.The internet has changed how university students study, prices of fees and accommodation have rocketed and smartphones have made socialising so much easier. We take a look back at just how university life has evolved, and the major changes that have made university life both easier and harder. Dr Mike Jackson OBE – University of…
🔥 Discover this trending post from Hacker News 📖 📂 Category: ✅ Here’s what you’ll learn: I get a text that my mom’s in the ICU. I don’t know how bad it is. I already have a flight to see her in four days and I’m not sure it’s worth moving. This isn’t the first time she’s been in the ICU; for years she’s been in and out of hospitals and stuff that used to make us panic now makes us go ‘oh darn, again?’I ask, How serious is it? The answers are fuzzy, and I am frustrated. I ask…
🔥 Read this awesome post from Hacker News 📖 📂 Category: ✅ Key idea: If you press your finger against water, it pushes back. That invisible resistance, surface tension, keeps the liquid whole even when disturbed.Good software has something like it. Some systems hold together when you change them; others leak at the slightest touch. The difference lies in integrity — the way a system manages its side effects without losing its shape.I’ve seen codebases that felt strangely calm, where every possible state meant something real and nothing arbitrary could slip in. Others allowed nonsense to exist, and from there,…
🔥 Read this must-read post from Hacker News 📖 📂 Category: ✅ Key idea: We're just going to call it: up until recently, cursor.com was powered by Sanity as its CMS.Then Lee Robinson sat down and spent 344 agent requests and around $260 to migrate the content and setup to markdown files, GitHub, Vercel, and a vibe-coded media management interface.He did a great write-up of the process on his blog. He was classy and didn't name us.Of course, when a high-profile customer moves off your product and the story resonates with builders you respect, you pay attention.The weird twist here…
✨ Explore this must-read post from Hacker News 📖 📂 Category: 📌 Key idea: Did you know migratory birds and sea turtles are able to navigate using the Earth's magnetic field? It's called magnetoreception. Basically, being able to navigate was evolutionarily advantageous, so life evolved ways to feel the Earth's magnetic field. A LOT of ways. Like a shocking amount of ways. Here's a few examples: Magnetotactic bacteria – magnetite chains as built-in compass needles. Land plants – growth, germination, tropisms modulated by weak magnetic fields. Honey bee – abdomen magnetite and magnetic compass in foragers. American cockroach – behavior…
🔥 Discover this awesome post from Hacker News 📖 📂 Category: 📌 Main takeaway: You’re Good “A few, for sure.”“About four times, actually. And my family’s rather small.”“Suicide has impacted my old friend group quite a bit.”“I’ve lost friends. I’ve lost family.”“My older brother.”“My sister’s youngest.”“I never thought I’d have that many people.”“Alcohol and depression, it comes hand-in-hand.”“One day the smiles stopped.”“I don’t mind talking about it.”“You guys are actually talking to the right person.” I’m interviewing fellow Indigenous metalheads at a heavy music festival on the Blackfeet Nation, with Russel Daniels (Diné and Ho-Chunk descent), a photographer who’s not…
🚀 Read this must-read post from Hacker News 📖 📂 Category: 💡 Key idea: Mathlib is a user maintained library for the Lean theorem prover. It contains both programming infrastructure and mathematics, as well as tactics that use the former and allow to develop the latter. You can find detailed instructions to install Lean, mathlib, and supporting tools on our website. Alternatively, click on one of the buttons below to open a GitHub Codespace or a Gitpod workspace containing the project. Using mathlib4 as a dependency Please refer to https://github.com/leanprover-community/mathlib4/wiki/Using-mathlib4-as-a-dependency Got everything installed? Why not start with the tutorial project?…
🔥 Discover this awesome post from Hacker News 📖 📂 Category: ✅ Main takeaway: An Implementation of J ' An Implementation of JRoger K.W. Hui Copyright © 1990-2011, Jsoftware Inc. last updated: 2000-06-23 Preface J is a dialect of APL freely available on a wide variety of machines. It is the latest in the line of development known as "dictionary APL". The spelling scheme uses the ASCII alphabet. The underlying concepts, such as arrays, verbs, adverbs, and rank, are extensions and generalizations of ideas in APL\360. Anomalies have been removed. The result is at once simpler and more powerful than…