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Simon Klee (@simonklee) profile picture

Simon Klee

@simonklee

Recovering web dev. @opencode at @anomalyco

 Copenhagen
simonklee.dk
Joined July 2009
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Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)Photo by Simon Klee (@simonklee)
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Article · @simonklee
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Building one-off tools is the best thing about software development in 2026.
James Long (@jlongster) profile pictureJames Long
@jlongsterOct 14
we're starting to implement new tui designs in opencode of course the first thing to do is to build a design tool which lets us see the entire app at once so we can make sure everything looks good, and the old designs (which you see here) don't break
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Simon Klee retweeted
James Long (@jlongster) profile picture
James Long
@jlongsterOct 12
what if your tui could build little interactive UIs inline? now in (my local) opencode
Image from James Long (@jlongster)
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"mistakenly" used the phrase "sessions thinking traces" to describe something. blocked.
Image from Simon Klee (@simonklee)
Simon Klee (@simonklee) profile pictureSimon Klee
@simonkleeOct 6
the future of software engineering
Image from Simon Klee (@simonklee)
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Removing "thinking traces" from the prompt and we're all good.
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I thought it would be fun to create a scary game (with OpenTUI) for my kids, but now I don't know if I can let them play it...
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It's just an exploration in how Limbo works based of these blog posts. adamkehl.com/recreating-limb… blog.playdead.com/articles/t…
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the future of software engineering
Image from Simon Klee (@simonklee)
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Simon Klee retweeted
kmdr (@kmdrfx) profile picture
kmdr
@kmdrfxSep 27
This was one of the main reasons I wanted plugins using opentui/keymap to be this powerful.
Daniel Smolsky (@DanielSmolsky) profile pictureDaniel Smolsky
@DanielSmolskySep 27
OpenCode 2 plugins are really powerful. Vim mode has been requested for a while. Here’s a plugin that gives OpenCode more Vim functionality than any other harness out there. github.com/Tarquinen/opencod…
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OpenCode 2 plugins are really powerful. Vim mode has been requested for a while. Here’s a plugin that gives OpenCode more Vim functionality than any other harness out there. github.com/Tarquinen/opencod…
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Simon Klee retweeted
Kartik (@1kartikkabadi1) profile picture
Kartik
@1kartikkabadi1Sep 24
OpenCode has a "mini" mode where it shows a small TUI instead of the full screen one 'opencode mini'
Image from Kartik (@1kartikkabadi1)
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I really don't have a use-case for it in OpenCode, but you can basically render video in modern terminals. - ffmpeg decodes movie to frames - OpenTUI draws them as kitty graphics images, synced to audio you can then create tui's like in my post.
Simon Klee (@simonklee) profile pictureSimon Klee
@simonkleeSep 22
you need to be Chinese and over 40yo to like this post 路在脚下
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you need to be Chinese and over 40yo to like this post 路在脚下
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jef ... i keep mistyping jev as jef
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Built this little video synthesizer for my website a while back. It's incredible fun to play with.
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simonklee.dk/lab/scanimate#t…

Scanimate

The homepage background is a working model of Scanimate, the 1969 analog animation computer. This page shows the model, its control board, and how the picture is made.

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7 3 4 5 7 4 9 0 3 5 5 7 5 2 8 0 nobody has cracked this cipher in ~500 years want to know what it said? simonklee.dk/farnese-letter
The Farnese letter

The Farnese letter

Recovering the key and text of a 1542 cipher from Cardinal Alessandro Farnese to Giovanni Poggio.

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What is this? I was curious to find out how well a frontier models and OpenCode can do history research. Turns out, pretty well. Also, the first time I've used my Bachelor in history for anything since graduating.
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Simon Klee retweeted
kmdr (@kmdrfx) profile picture
kmdr
@kmdrfxSep 15
Do NOT watch this. Good thing I said Thursday for stream in that podcast.
Orhun Parmaksız 👾 (@orhundev) profile pictureOrhun Parmaksız 👾
@orhundevSep 15
I interviewed Sebastian Herrlinger (@kmdrfx) about building TUIs with Zig & Typescript! 💯 We talked about OpenTUI: the framework behind @opencode 🎬 youtube.com/watch?v=ohfWF6SA… Next up: Tris from @NoBoilerplate shows us his terminal setup on September 22! 🦀 Join our Discord: terminalcollective.org #terminal #tui #opensource #podcast #opencode #opentui
Image from Orhun Parmaksız 👾 (@orhundev)
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Yesterday i built a 5-gram language model of Machiavelli's Principe, Lettere, Discorsi and Istorie fiorentine, Castiglione's Cortegiano, Vasari's Vite (1550 edition), and a million characters of the papal secretariat's correspondence of 1541–44 Don't ask why
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harder than Rubik’s cube
Image from Simon Klee (@simonklee)
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