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Robet

@robertlj.bsky.social
82 followers 125 following 22 posts

Programmer / Report Writer / Data wrangler / dev tools: Clojure(CLR/JVM) and F#, DuckDB

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Sergey Tihon 🦔🦀 @sergeytihon.com · 2h
F# Weekly #41, 2026 - Paket 11 & Firelight #fsharp sergeytihon.com/2026/10/10/f...
sergeytihon.com
F# Weekly #41, 2026 – Paket 11 & Firelight
Welcome to F# Weekly, A roundup of F# content from this past week: News Paket 11 Firelight: Web Components for F# Microsoft News A faster, lighter C# Dev Kit Build Agentic UI with the new Blazor AI…
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thisisfranciswu @thisisfranciswu.bsky.social · 09/10/2026
Even Clojure creator Rich Hickey wants devs to think deeply before they build. Most teams run a relay, thinking alone and handing off conclusions. Better as a product trio: exchange thoughts, step back, compare notes, until things crystallize together. youtu.be/f84n5oFoZBc
youtu.be
Hammock Driven Development - Rich Hickey
Rich Hickey's second, "philosophical" talk at the first Clojure Conj, in Durham, North Carolina on October 23rd, 2010. Many thanks to Matt Courtney, who graciously provided the equipment and…
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Steve Klabnik @steveklabnik.com · 05/10/2026
"I spent a lot of time going over the design decisions involved here, trying my best to complain about async Rust, only to end up going “Oh. Yeah. That’s reasonable. That makes sense. I can see why they did it that way.” every step of the way." herecomesthemoon.net/2026/10/asyn...
herecomesthemoon.net
Async Rust: Where does the scheduler live?
It turns out that some issues people have with async Rust are just downstream of hard concurrency problems.
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Evan Czaplicki @acadia.engineering · 05/10/2026
Elm 0.19.3 is out today! ✨ elm-lang.org/news/another... ✨ Check out the roadmap for the next few releases too. We are preparing the compiler for some exciting improvements and features 😊
Rough road map describing what to expect from the next few releases.
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Quoll @gearon.org · 01/10/2026
Several people have said hello to me at Clojure/conj today, saying that they follow me on BlueSky. Hi 👋 And hi to everyone else who follows me too 👋
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Bill Tucker @imbilltucker.bsky.social · 01/10/2026
Here’s the guy who renewed my interest in practicing #clojure Thanks ClojureCamp!
Raf sitting in a camp chair in front of a fake LED fire with a plush green rug that looks like grass
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Evan Czaplicki @acadia.engineering · 24/09/2026
I have a bunch of changes that could be Elm 0.19.3. It's basically all "compiler improvements" that will not be visible to users, so I looking for feedback on which aspects sound most interesting. Let me know here or in the more detailed thread! ⬇️ discourse.elm-lang.org/t/help-plann...
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Evan Czaplicki @acadia.engineering · 16/09/2026
It is easy to define per-row security policies with Acadia: ✨ acadia.engineering/blog/simple-... ✨ The compiler then does "symbolic evaluation" at compile time so that in many cases, you pay zero runtime cost for your security guarantees! The example app runs an Elm server too! 🚄
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Sergey Tihon 🦔🦀 @sergeytihon.com · 12/09/2026
F# Weekly #37, 2026 — F# 11 RC1 and Fantomas 8 Beta Land #fsharp sergeytihon.com/2026/09/12/f...
sergeytihon.com
F# Weekly #37, 2026 — F# 11 RC1 and Fantomas 8 Beta Land
Welcome to F# Weekly, A roundup of F# content from this past week: News F# in .NET 11 RC 1 – Release Notes Microsoft News Announcing .NET 11 Release Candidate 1 – .NET Blog Use C# union…
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Steve Klabnik @steveklabnik.com · 10/09/2026
We've been cooking at @ersc.io "What comes after git" ersc.io/blog/what-co...
ersc.io
What comes after git
Our thoughts about the future of version control
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Jeaye Wilkerson @jeaye.com · 04/09/2026
Check out the latest goodies in jank land! jank is #clojure and #cpp combined in such a lovely way. jank-lang.org/blog/2026-09...
jank-lang.org
jank reimagines C++ errors and gets an official native package repo
jank's errors are slick, but did you know you can start a new raylib app in jank with one command?
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(λ. borkdude) @borkdude.bsky.social · 04/09/2026
This is kinda insane. Calling JSC from bb via FFI with callbacks (so you can call Clojure functions from JS as well), CLJS is compiled on the fly with squint. Super fast, the whole examples runs in 65ms. #clojure #clojurescript #babashka #squintcljs
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Brian T. Rice @briantrice.bsky.social · 05/09/2026
I can’t even get an interview callback for a damn Clojure job. This market blows.
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Steve Klabnik @steveklabnik.com · 04/09/2026
i will be spared in the agent uprising because I, too, compulsively post on message boards to talk to my little friends on the computer
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(λ. borkdude) @borkdude.bsky.social · 02/09/2026
My project updates for July and August. Thanks to all sponsors (Github, Clojurists Together, OpenCollective), contributors, users or those otherwise involved! blog.michielborkent.nl/oss-updates-... #babashka #clojure #cljKondo #squintcljs
blog.michielborkent.nl
OSS updates July and August 2026
My Clojure OSS updates for July and August 2026
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Steve Klabnik @steveklabnik.com · 01/09/2026
working with Martin has been a real pleasure, and we're super excited to have him at @ersc.io !
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seancorfield.bsky.social @seancorfield.bsky.social · 25/08/2026
A good friend of mine has finally landed a job after an extended period of unemployment, but it might not be in time to keep a roof over his head, so he's created a GFM to try to raise two months' rent and a small buffer before he has to have an eviction hearing: gofund.me/47f4a54bd
gofund.me
Donate to Help Jared’s Family Make Rent, organized by Jared Rypka-Hauer
My name is Jared, and I’m raising funds for my family to help us make rent this month.… Jared Rypka-Hauer needs your support for Help Jared’s Family Make Rent
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P(aul) Frazee @pfrazee.com · 24/08/2026
Telling everybody we just got the Nobel Prize
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Sergey Tihon 🦔🦀 @sergeytihon.com · 01/08/2026
F# Weekly #31 — MCP C# SDK v2.0, Unit-Test Agent, and MSBuild Binlog in VS Code #fsharp sergeytihon.com/2026/08/01/f...
sergeytihon.com
F# Weekly #31 — MCP C# SDK v2.0, Unit-Test Agent, and MSBuild Binlog in VS Code
Welcome to F# Weekly, A roundup of F# content from this past week: News What’s new in 2.0 | Elmish Land Microsoft News Announcing v2.0 of the official MCP C# SDK From generated code to truste…
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(λ. borkdude) @borkdude.bsky.social · 31/07/2026
Sixth Online Func Prog Sweden 2026 11 August, 18:00 CEST www.meetup.com/func-prog-sw... #clojure
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freeCodeCamp.org @freecodecamp.bsky.social · 29/07/2026
Clojure is a functional programming language that can change how you think about writing code. Here, Mark teaches you Clojure through animated code playbacks & hands-on exercises. You'll learn about functions, immutable data structures, lazy sequences, and more. www.freecodecamp.org/news/learn-c...
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phronemophobic.bsky.social @phronemophobic.bsky.social · 22/07/2026
I'll be hosting a workshop on fast, lean, native Clojure. You can check out the full workshop lineup and get your pass here: 2026.clojure-conj.org/workshops #clojure
I'm facilitating a workshop at Clojure/conj 2026!

Fast, Learn, Native Clojure
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Kelsey Hightower @kelseyhightower.com · 21/07/2026
AI isn't a fad. Talking about AI all the time is.
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Niki @nikitonsky.mastodon.online.ap.brid.gy · 20/07/2026
I am looking for work! Clojure, or, maybe, something native, closer to the metal. RT for reach please 🙏 tonsky.me/blog/work-2026
tonsky.me
Looking for work
Hey, Niki here. This is a bit unusual. My sabbatical is coming to an end, and I am looking for a new opportunity. Full-time or contract, startup or research, remote or Berlin, individual contributor, ideally—tight team, ambitious product. I am a software engineer first and foremost with 20+ years of experience. I work on technically challenging products, foundational technology, dev tools. I’ve been doing Clojure and web recently, but I'm also very excited to explore closer-to-the-metal programming. I have an eye for design, user interfaces, UX, DX. I would love to work with a team that takes interface quality seriously. Or to work with graphics! I am pretty sure I am good at explaining stuff, including what we are building, why, why this way, why is it important, etc. For example. The overarching theme is to understand computers deeply, and then use that to make better and simpler software. If you care about that too, we might be a great match! # Recent work Instant DB is a US startup building a modern Firebase. I worked on the sync algorithm, performance, DX. A summary of my commit log. Roam Research is an OG personal knowledge manager. I worked on database optimization and a plugin system. At JetBrains, I developed a new Skia renderer for Fleet and Jetpack Compose Desktop. I’ve built many open-source libraries, including a database, a GUI toolkit, a Clojure dev environment, a React wrapper, a well-known font... More recently, Clojure+ gives you a taste of my approach to DX, and Fast EDN—to performance. I maintain several active projects — AlleKinos.de, Grumpy Website, this site. If you want to dive deeper, here’s the usual stuff: Projects / Talks / LinkedIn / GitHub # Why this post? It’s an attempt to reach beyond my immediate network. I’ve been doing Clojure for a long time, and now want to explore. If you are working on a compiler, a database, an IDE, a programming language or another technically ambitious product, touching graphics, typography, algorithms, low-level programming, and you think my experience can help, let’s talk: niki@tonsky.me.
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Steve Klabnik @steveklabnik.com · 17/07/2026
👀👀👀 github.com/tokio-rs/top... #rust-lang
github.com
GitHub - tokio-rs/topcoat: A batteries-included framework for building web apps
A batteries-included framework for building web apps - tokio-rs/topcoat
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Steve Klabnik @steveklabnik.com · 16/07/2026
wow who knew apple was such a fan of anthropic
"malware blocked and moved to trash"

"codex-aarch64-apple-darwin" was not opened because it contains malware. this action did not harm your mac
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Roopika Risam @roopikarisam.bsky.social · 16/07/2026
I used to work in Barnes and Noble. Here I am at my local B&N. When I told a bookseller it was mine, she got on the loud speaker and said, “There is an author in the building!” Another staff member came over and they asked me to sign my books and congratulated me. Thanks, B&N!
Me in the New & Noteworthy section of Barnes and Noble, holding DATA EMPIRE
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Simon Willison @simonwillison.net · 16/07/2026
My notes on Kimi K3, plus some thoughts on what we can still learn from the pelican benchmark even while it becomes further detached from how good the models are at the things that matter (like agentic tool calling across longer conversations) simonwillison.net/2026/Jul/16/...
simonwillison.net
Kimi K3, and what we can still learn from the pelican benchmark
Chinese AI lab Moonshot AI announced Kimi K3 this morning, describing it as their “most capable model to date, with 2.8 trillion parameters”. It’s currently available via their website and …
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Steve Klabnik @steveklabnik.com · 17/07/2026
me: "hey it's cool that we're friends" hacker news commenter: "do you know who else had a lot of friends? jeffery epstein" this is not a shitpost, it's an actual reply I just got
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Damoon Rashidi @damoonrashidi.bsky.social · 29/06/2026
I recently opensourced my #database GUI Peek over at getpeek.dev (code at github.com/getpeek/peek). If you regularly use #postgres #mysql #duckdb or similar to dig into data or do #dataviz i'd live for you to download it and give it a try. It's free and open source!
A screenshot displaying the DAG like nature of Peek
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Dag Brattli @dbrattli.bsky.social · 17/06/2026
The Fable Repl has been updated to include BEAM, and now compiles F# code to Erlang 🥰 fable.io/repl/ #fsharp #fablecompiler
fable.io
Fable REPL
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Ars Technica @arstechnica.com · 25/06/2026
arstechnica.com
IBM claims world’s first sub-1 nanometer chip technology
IBM’s nanostack transistors could boost chip performance or energy efficiency.
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The Lobste.rs RSS feed @lobsters-feed.bsky.social · 18/06/2026
ClojureWasm is a Clojure runtime written from scratch in Zig and Clojure, with no JVM lobste.rs/s/updcup #programming #clojure #wasm
github.com
GitHub - clojurewasm/ClojureWasm: A lightweight Clojure runtime in Zig — call WebAssembly from Clojure to tap libraries written in any language.
A lightweight Clojure runtime in Zig — call WebAssembly from Clojure to tap libraries written in any language. - clojurewasm/ClojureWasm
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Pony @ponylang.bsky.social · 14/06/2026
Last Week in Pony - Horse Outside Edition www.ponylang.io/blog/2026/06...
ponylang.io
Last Week in Pony - June 14, 2026 - Pony
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Gene Conroy-Jones @foursignalsdev.bsky.social · 13/06/2026
Flatiron: a pure Clojure columnar library using typed primitive arrays for near-native C performance on the JVM. Zero dependencies beyond core.async.
foursignals.dev
A columnar database for analytics in pure Clojure
Four Signals — The Wire
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Jeaye Wilkerson @jeaye.com · 12/06/2026
I've been working on jank's ability to compile #clojure programs to native executables which don't depend on Clang/LLVM. All functionality is baked in, like Graal native images. It works! They're smaller than native images and startup is instantaneous. 🔥
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gosha ⁂ @gosha.gosha.net.ap.brid.gy · 06/06/2026
How I learn #Clojure — gosha.net/2026/learning-clojure
gosha.net
How I learn Clojure → Gosha Tcherednitchenko
Combining 4clojure, the clojure.core docs, and the Clojure source code
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(λ. borkdude) @borkdude.bsky.social · 28/05/2026
Tetris game in bb. Oneliner to run it: bb -e '(load-string (slurp "raw.githubusercontent.com/babashka/…"))' #clojure #babashka
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Unofficial Hacker News frontpage bot @hn-frontpage-bot.bsky.social · 18/05/2026
Jank now uses a custom intermediate representation (IR) to optimize Clojure code, aiming to rival JVM performance. Initial optimizations on a recursive Fibonacci benchmark significantly reduced execution time from 5,522ms to 114ms, surpassing the JVM's 200ms.
news.ycombinator.com
Jank now has its own custom IR (103)
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Hacker News 20 @betterhn20.e-work.xyz · 09/05/2026
Show HN: I made a Clojure-like language in Go, boots in 7ms github.com/nooga/let-go (news.ycombinator.com/item?id=480768…)
github.com
GitHub - nooga/let-go: Almost Clojure written in Go.
Almost Clojure written in Go. Contribute to nooga/let-go development by creating an account on GitHub.
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(λ. borkdude) @borkdude.bsky.social · 07/05/2026
ClojureScript 1.12.145 is out, featuring async/await. clojurescript.org/news/2026-05... #clojure #clojurescript
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Sam Aaron @samaaron.bsky.social · 07/05/2026
Just completed my first live coded performance using v5 of Sonic Pi powered by SuperSonic. Definitely a MASSIVE eat your own dogfood moment. I live coded up to the opening keynote for MongoDB.local London and it went super smoothly.
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Fer @lferc.bsky.social · 01/05/2026
My friend Nick wrote a Game Boy Emulator with #fsharp and here is his journey nickkossolapov.github.io/fame-boy/bui...
nickkossolapov.github.io
I built a Game Boy emulator in F#
Hundreds of hours, many late nights, and a working Game Boy emulator in F# with sound, running on desktop and web.
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Pony @ponylang.bsky.social · 26/04/2026
Last Week in Pony - Take Me Home edition www.ponylang.io/blog/2026/04...
ponylang.io
Last Week in Pony - April 26, 2026 - Pony
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Jared Norman @jardo.dev · 20/04/2026
the clojure project seems to be committed to keeping their codebase from becoming terrible. good on 'em. clojure.org/dev/contributor_agreeme…
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Simon Willison @simonwillison.net · 20/04/2026
I upgraded my Claude token counter tool to compare different models and Opus 4.7 appears to use 1.46x times the tokens for text and up to 3x the tokens for images - it's priced the same as Opus 4.6 on a per-token basis so this is actually a pretty big price bump simonwillison.net/2026/Apr/20/...
Screenshot of a token comparison tool with an uploaded screenshot PNG image. Models to compare: claude-opus-4-7 (checked), claude-opus-4-6 (checked), claude-opus-4-5, claude-sonnet-4-6, claude-haiku-4-5. Note: "These models share the same tokenizer". Blue "Count Tokens" button. Results table — Model | Tokens | vs. lowest. claude-opus-4-7: 4,744 tokens, 3.01x (yellow badge). claude-opus-4-6: 1,578 tokens, 1.00x (green badge).
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Ellyse @ellyxir.com · 17/04/2026
i've used a bunch of lisp-like languages but never clojure. stumbled across this new video and it seems really high quality. kind of strange actually. it seems legit and i'm enjoying it: www.youtube.com/watch?v=Y24v...
youtube.com
How one programmer's pet project changed how we think about software
YouTube video by CultRepo
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Cult.Repo @cultrepo.bsky.social · 14/04/2026
Thursday is a big day on CultRepo. You can watch the Spring Trailer and the full Clojure documentary! 6PM CEST, 5PM BST, 12PM EDT, 9AM Spring: The Documentary Trailer 8PM CEST, 2PM EDT, 11AM PDT Clojure: The Documentary Back-to-back tech documentaries! www.youtube.com/@cultrepo
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Cult.Repo @cultrepo.bsky.social · 14/04/2026
Call us old fashioned, but we still believe in human craft. Check out the drafts and the finished version of our Clojure film poster. You can catch the full film on our YT channel tomorrow!
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Simon Willison @simonwillison.net · 03/04/2026
Warning to open source maintainers: the Axios supply chain attack started with some very sophisticated social engineering targeted at one of their developers simonwillison.net/2026/Apr/3/s...
simonwillison.net
The Axios supply chain attack used individually targeted social engineering
The Axios team have published a full postmortem on the supply chain attack which resulted in a malware dependency going out in a release the other day, and it involved …
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