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Johannes Ernst

Technologist, founder, organizer.

I believe the world is better if people are in control of their own destiny. In technology, that means we need to control our data, freely choose the software we use with our data and fairly negotiate the terms by which we interact with others, including which data is and isn't shared. Not a fan of overlords, in politics and in technology.

Very excited about the opportunities on the resurging open social web / the Fediverse.

Also: Facts matter. Empathy, inclusion, opportunity.

Recent appearances:

Meet me next at:

  • SeaGL, the Seattle GNU/Linux conference, November 8-9, 2024, where I'll give a talk about FediTest and hope to arrange a get-together of Fediverse enthusiasts.

Main accounts

This home page
j12t.org
Blog
reb00ted.org
Main Fediverse account (NEW)
@j12t@j12t.social ← follow me here

Other accounts

Bluesky
@j12t.org
LinkedIn
linkedin.com/in/jernst
Github
github.com/jernst
Gitlab
gitlab.com/j12t
Lemmy
@j12t@lemmy.world
Old blog
upon2020.com/blog
Threads
@johannes.ernst@threads.net
Facebook
facebook.com/johannes.ernst
X/Twitter
It's over.
Matrix
@jernst:matrix.org
Signal
j12t.49

Main projects

Dazzle Labs Inc.
Startup at the intersection of the Fediverse, identity/personal data and personal AI.
FediForum
The unconference for the people who move the Fediverse forward.
Fediverse Developer Network
Where ActivityPub and Fediverse developers meet and collaborate.
FediTest
Open-source test framework for complex, heterogeneous, decentralized systems like the Fediverse.
UBOS.net
Open-source software for a thriving social web of peers, the way e-mail works.

Other/previous projects

Social Web Foundation
I'm an advisor.
Project Springtime
My open-source backyard hydroponics system.
Indie Computing Corp.
Where I incubate and try out new ideas. Like home servers.
Light-Weight Identity (LID)
The original, decentralized, user-centric digital identity scheme for the web. Invented ca 2004.
OpenID
The most widely deployed internet identity protocol. Founding board member.
Yadis.org
Metadata discovery for URLs. Predecessor of WebFinger and DID resolution.

There's more on my LinkedIn.