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T4T5

@t4t5.com
149 followers 284 following 37 posts

open sorcerer and plaintext enthusiast. Building tools for digital sovereignty at ren.org

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Reposted by T4T5
Sebastian @center.for.cybernetic.beauty · 25/09/2026
Caldir by @t4t5.com is just great. Finally a backup from Google Calendar that is under my control. caldir.org
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T4T5 @t4t5.com · 25/09/2026
Love to hear that! ❤️
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T4T5 @t4t5.com · 04/09/2026
reactjs is my passion
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T4T5 @t4t5.com · 05/08/2026
t4t5.com/zero-ai-feat...
t4t5.com
The best AI apps have zero AI features
Plaintext-first apps are naturally ready for the age of AI
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T4T5 @t4t5.com · 02/08/2026
wonderful news!
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T4T5 @t4t5.com · 01/08/2026
an unfortunate side effect of LLM-assisted exploits is that people will be more wary of sharing their setups i used to always have my dotfiles public on github, but now I don’t dare to do that anymore. it’s just an unnecessary risk at this point
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T4T5 @t4t5.com · 31/07/2026
loved the demos this year. very inspiring to see new ideas for the desktop!
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T4T5 @t4t5.com · 31/07/2026
my @localfirstconf.com talk is now on youtube! it's a love letter to plaintext weirdos, and a case for why the best way to build AI apps is to add zero AI features www.youtube.com/watch?v=2ZEB...
youtube.com
Tristan Edwards — Plaintext-first apps in the age of agents
YouTube video by Local-First Conf
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T4T5 @t4t5.com · 30/07/2026
renCal just crossed 100 stars on github! 🥳 i’m continuing to bet on plaintext-first software in 2026 github.com/t4t5/rencal
github.com
GitHub - t4t5/rencal: A modern desktop calendar. Built for Omarchy.
A modern desktop calendar. Built for Omarchy. Contribute to t4t5/rencal development by creating an account on GitHub.
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T4T5 @t4t5.com · 16/07/2026
a cool thing about caldir: anyone can write a custom provider for fetching calendar data here’s one that reads calendar feeds from the AT Protocol using the "community.lexicon.calendar.event" lexicon: github.com/t4t5/caldir-...
github.com
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Reposted by T4T5
Local-First Conf @localfirstconf.com · 12/07/2026
First lightning talk today: @t4t5.com shares his passion about plaintext applications 🤓
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T4T5 @t4t5.com · 25/06/2026
i finally built my dream Linux calendar on top of caldir local-first, keyboard-driven, agent-friendly rencal.org
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T4T5 @t4t5.com · 16/06/2026
i wrote a post about the UK's increasingly authoritarian approach to digital privacy t4t5.com/privacy-uk/
t4t5.com
The erosion of digital privacy in the UK
The UK is becoming one of the most hostile countries in the democratic world for digital privacy.
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T4T5 @t4t5.com · 09/06/2026
feels like I’m 10 years old again 🥹 such a beautiful device
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T4T5 @t4t5.com · 05/06/2026
claude code has been borderline unusable for me lately it fights simple instructions and spends 10+ minutes thinking about changes that should take 30 seconds i moved my setup to pi + GPT 5.5 and the results are sooo much better
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T4T5 @t4t5.com · 07/05/2026
i'm pretty much doing open-source full-time now haven't sat through a standup or gotten a slack ping for months god i love being free
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T4T5 @t4t5.com · 23/04/2026
soo nice to have a scriptable calendar
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T4T5 @t4t5.com · 10/03/2026
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T4T5 @t4t5.com · 06/03/2026
After years of big-tech dependency I feel like I'm finally able to break free from proprietary walled-garden apps, and I absolutely love it. Moving your data into portable, plaintext file formats keeps you from being trapped in digital ecosystems that you can't control. 👉 github.com/t4t5/caldir
github.com
GitHub - t4t5/caldir: "file over app" for calendars
"file over app" for calendars. Contribute to t4t5/caldir development by creating an account on GitHub.
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T4T5 @t4t5.com · 06/03/2026
The caldir-core package is intentionally simple and extensible. By tackling the basic problem of storing and syncing events, it makes it easy for anyone to experiment with UIs and workflows on top of it. TUIs like khal should already support Caldir quite well. GUIs are coming soon!
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T4T5 @t4t5.com · 06/03/2026
Caldir's sync mechanism works similarly to git. You push and pull changes to keep your local directory in sync with a remote (can be Google Calendar, iCloud Calendar, CalDav, or any other cloud calendar)
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T4T5 @t4t5.com · 06/03/2026
Caldir is the "file-over-app" philosophy applied to calendars. One ICS file per event, human-readable filenames, sorted chronologically by default. A standard plaintext format makes your events trivial to read and composable with other unix tools.
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T4T5 @t4t5.com · 06/03/2026
I wanted my AI agent to be able to read my calendar. Turns out the easiest way is to just make a directory of text files. So I built caldir caldir.org 🧵
caldir.org
Caldir
Your calendar as a directory
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T4T5 @t4t5.com · 31/01/2026
x402 is the future
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T4T5 @t4t5.com · 27/01/2026
some changes i've made to my tech stack to optimise for agent workflows: 🚫 Notion/Notes ✅ markdown files (with Obsidian) 🚫 Todo app ✅ todo.txt 🚫 Quickbooks ✅ beancount files 🚫 Google sheets ✅ csv files 🚫 Recipe app ✅ cooklang files
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T4T5 @t4t5.com · 09/01/2026
my biggest bet for 2026: invest in plaintext productivity t4t5.com/plaintext-pr...
t4t5.com
The return of plaintext productivity
What happens when everyone starts optimising their software for LLMs over humans?
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T4T5 @t4t5.com · 06/01/2026
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T4T5 @t4t5.com · 06/01/2026
the thing with vibe coding is that writing the code was never really the hard part It’s like an author saying they could write Harry Potter because they can generate any sentence
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T4T5 @t4t5.com · 03/04/2025
these L2s, they're laughing at us. we will make them pay their fair share with reciprocal blob fees
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T4T5 @t4t5.com · 03/04/2025
install instructions for Claude and Cursor: github.com/ordiscan/ord...
github.com
GitHub - ordiscan/ordiscan-mcp: An MCP server for getting information about Ordinals and Runes on Bitcoin
An MCP server for getting information about Ordinals and Runes on Bitcoin - ordiscan/ordiscan-mcp
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T4T5 @t4t5.com · 03/04/2025
you can now install the ordiscan MCP server and ask your AI assistant about ordinals ✨
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T4T5 @t4t5.com · 18/03/2025
I built a website showing where the UK government spends its money wheredoesitallgo.org
wheredoesitallgo.org
Where does it all go?
A breakdown of UK government spending
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T4T5 @t4t5.com · 04/03/2025
"very nice stock markeut you have over zere. would be a shame if something 'appened to it..."
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T4T5 @t4t5.com · 26/11/2024
can the eu just chill and let us have good things
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T4T5 @t4t5.com · 26/11/2024
install instructions can be found here: github.com/taproot-wiza... it’s currently designed to work with the "script!" macro in rust, since that's what we use at Taproot Wizards
github.com
GitHub - taproot-wizards/bitcoin-script-hints.nvim
Contribute to taproot-wizards/bitcoin-script-hints.nvim development by creating an account on GitHub.
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T4T5 @t4t5.com · 25/11/2024
working with bitcoin script is hard, so i made a neovim plugin that shows you the state of the stack after each operation ✨
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T4T5 @t4t5.com · 24/11/2024
would love to join!
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T4T5 @t4t5.com · 15/11/2024
feel like pure shit i just want her back x
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T4T5 @t4t5.com · 04/07/2023
gm
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