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Steve Heffernan
@heff
founder
Author of @videojs, co-founder of @zencoder and @muxinc. I hack on video.
📍 San Francisco
🏢 Video.js & Mux
🔗 mux.com
x.com/heff
1
projects
1
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461
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@heff
Public activity only. Nothing here is editable until claimed. Removed automatically on Apr 8, 2027 if unclaimed.
Languages
● JavaScript 60%
● HTML 20%
● CSS 10%
● TypeScript 5%
Is this you?
Claim it to take control of what it shows, get your handle, and import 1 project with points.
Claim this profile
Not you, or want it removed?
Where this came from
GitHub ·
@heff
Public activity only. Nothing here is editable until claimed. Removed automatically on Apr 8, 2027 if unclaimed.
Languages
● JavaScript 60%
● HTML 20%
● CSS 10%
● TypeScript 5%
Venture Rounds
Open →
TypeSafe AI
Series A · Oct 9
$870M
Oxide Computer Company
Series D · Oct 9
$445M
U
Ultra
Series A + seed · Oct 9
$62M
Sabi
Seed · Oct 9
$50M
ARR Leaderboard
Open →
1
Anthropic
$75B
2
OpenAI
$70B
3
Databricks
$7B
4
Anduril
$3.5B
5
Crusoe
$2.2B
Top AI Shorts
Open →
The Best AI Gets Out of the Way
Lenny's Podcast
DeepSeek Painted My Portrait
Matthew Berman
AI ISN'T KILLING JOBS
20VC
Meta's Cute New A.I. Agent Is Taking Over My Brain
Hard Fork
Chamath: 3 Things Every Company Needs in the Age of Superintelligence
All-In Podcast
Exits
Open →
Augment Code (select assets)
Acquired · Oct 9
—
Cleartrace
Acquired · Oct 7
—
Boost.ai
Acquired · Oct 7
—
KL Software Technologies (KLoBot)
Acquired · Oct 6
—
Venture Rounds
Open →
TypeSafe AI
Series A · Oct 9
$870M
Oxide Computer Company
Series D · Oct 9
$445M
U
Ultra
Series A + seed · Oct 9
$62M
Sabi
Seed · Oct 9
$50M
ARR Leaderboard
Open →
1
Anthropic
$75B
2
OpenAI
$70B
3
Databricks
$7B
4
Anduril
$3.5B
5
Crusoe
$2.2B
Top AI Shorts
Open →
The Best AI Gets Out of the Way
Lenny's Podcast
DeepSeek Painted My Portrait
Matthew Berman
AI ISN'T KILLING JOBS
20VC
Meta's Cute New A.I. Agent Is Taking Over My Brain
Hard Fork
Chamath: 3 Things Every Company Needs in the Age of Superintelligence
All-In Podcast
Exits
Open →
Augment Code (select assets)
Acquired · Oct 9
—
Cleartrace
Acquired · Oct 7
—
Boost.ai
Acquired · Oct 7
—
KL Software Technologies (KLoBot)
Acquired · Oct 6
—