T4T5
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t4t5.com
T4T5
@t4t5.com
open sorcerer and plaintext enthusiast.

Building tools for digital sovereignty at http://ren.org
reactjs is my passion
September 4, 2026 at 11:24 AM
wonderful news!
August 2, 2026 at 6:12 PM
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
August 1, 2026 at 8:26 AM
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...
Tristan Edwards — Plaintext-first apps in the age of agents
YouTube video by Local-First Conf
www.youtube.com
July 31, 2026 at 2:01 PM
renCal just crossed 100 stars on github! 🥳

i’m continuing to bet on plaintext-first software in 2026

github.com/t4t5/rencal
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.
github.com
July 30, 2026 at 3:51 PM
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
July 16, 2026 at 3:46 PM
Reposted by T4T5
First lightning talk today: @t4t5.com shares his passion about plaintext applications 🤓
July 12, 2026 at 12:14 PM
i finally built my dream Linux calendar on top of caldir

local-first, keyboard-driven, agent-friendly

rencal.org
June 25, 2026 at 2:01 PM
i wrote a post about the UK's increasingly authoritarian approach to digital privacy

t4t5.com/privacy-uk/
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.
t4t5.com
June 16, 2026 at 3:56 PM
feels like I’m 10 years old again 🥹

such a beautiful device
June 9, 2026 at 12:59 PM
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
June 5, 2026 at 7:38 AM
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
May 7, 2026 at 7:48 PM
soo nice to have a scriptable calendar
April 23, 2026 at 1:53 PM
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
Your calendar as a directory
caldir.org
March 6, 2026 at 5:14 PM
x402 is the future
January 31, 2026 at 12:52 PM
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
January 27, 2026 at 11:46 AM
my biggest bet for 2026: invest in plaintext productivity

t4t5.com/plaintext-pr...
The return of plaintext productivity
What happens when everyone starts optimising their software for LLMs over humans?
t4t5.com
January 9, 2026 at 8:33 AM
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
January 6, 2026 at 9:01 PM
these L2s, they're laughing at us. we will make them pay their fair share with reciprocal blob fees
April 3, 2025 at 1:15 PM
you can now install the ordiscan MCP server and ask your AI assistant about ordinals ✨
April 3, 2025 at 12:12 PM
I built a website showing where the UK government spends its money

https://wheredoesitallgo.org
Where does it all go?
A breakdown of UK government spending
wheredoesitallgo.org
March 18, 2025 at 10:15 AM
"very nice stock markeut you have over zere.
would be a shame if something 'appened to it..."
March 4, 2025 at 5:27 PM
can the eu just chill and let us have good things
November 26, 2024 at 7:12 AM
working with bitcoin script is hard, so i made a neovim plugin that shows you the state of the stack after each operation ✨
November 25, 2024 at 4:06 PM