Joined May 2025
- Tweets 51
- Following 23
- Followers 34
- Likes 11
2 Photos and videos
You can’t debug a factory.
@zanehengsperger (@noxmetals) is building in a world where:
→ problems are physical
→ downtime costs real money
→ and speed is the real advantage
A different take on what building looks like outside software.
Link in comments.
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Joyful Health just raised $22M and is scaling quickly.
The company was built after seeing how much revenue was being lost across disconnected systems in healthcare.
Now they’re building a system that brings it all together.
Link in comments
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First Builders retweeted
Apr 1
New episode from @first_builders_ with Tina Hwang (Google, WhatsApp, Twitter, Ancestry), now Head of Legal at ClassDojo.
What does it actually take to build trust at scale? From WhatsApp’s global expansion to pivotal moments at Twitter and rethinking communication in education. Tina breaks it down.
If you’re building in high-stakes environments, don’t miss this one.
🎥 Watch the full episode below
💬 Share your biggest takeaway
🔔 Subscribe for more in the comments
00:00 Introduction
02:49 Navigating ambiguity in high-growth
05:50 Legal strategy as a growth lever
08:20 WhatsApp’s global expansion regulation
11:07 Building trust across markets
13:41 Leadership in times of change
14:24 ClassDojo’s impact in education
17:04 Operationalizing trust in products
20:07 Privacy consumer health data
22:41 Speed vs. safety in governance
27:22 Legal interoperability
28:23 Is legal always “the department of no”?
31:18 Balancing risk in hyper-growth
34:32 Tech’s geopolitical impact
38:11 Trust in AI systems
41:55 Underrated skills for builders
44:54 Leading in regulated industries
48:32 Building teams networks
49:44 Navigating trade-offs
52:38 Trust in customer experience
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Most founders think great products win.
Tina Hwang (Google, WhatsApp, Twitter, ClassDojo) explains what actually determines success at global scale:
→ Regulation
→ Cultural context
→ User trust
A sharp breakdown of building in ambiguity and making real trade-offs.
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Public benefits exist. Access is the real problem.
Siran Cao went from scaling frontline ops at Uber to rebuilding how families navigate childcare, nutrition, and health support.
On First Builders, she covers workforce infrastructure and restoring trust in the safety net.
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Empathy is not soft. In caregiving, it is infrastructure.
Duanni Hurd went from Silicon Valley hardware leadership to building a 24/7 home care company.
On First Builders, she shares why trust drives scale, why care cannot be Uberized, and how AI can support operators.
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First Builders retweeted
Feb 20
Loved diving in with @FilArons on his journey as a repeat founder, engineer at Northrop Grumman, and now CEO at @DiracInc. Dirac bridges assembly design to manufacturability for companies like Anduril and Siemens.
@rachtsui and I are proud to to have them in The Council portfolio!
00:00 Introduction
02:35 The Journey into Engineering and Hard Problems
05:27 The Birth of Dirac: From Aerospace to Software
08:11 Addressing the Opioid Crisis: A Personal Story
10:43 Deciding What to Build: Timing and Passion
12:58 Navigating Hardware and Software Challenges
15:32 The Day-to-Day of Tackling Hard Problems
18:31 Manufacturers' Willingness to Innovate
22:57 Building Trust in Complex Industries
24:58 Embracing Risk in Entrepreneurship
26:39 The Assembly Company: Dirac's Unique Approach
31:48 Reintegrating American Manufacturing
36:24 Defining Success and Milestones at Dirac
38:14 Rapid Fire Insights: Leadership and Innovation
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From neuroscience labs and defense systems → the factory floor. Filip Aronshtein founded Dirac to tackle assembly in manufacturing.
On First Builders, he explains why execution, trust, and working with reality beat elegant theory.
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Early Chrome OS builds → healthcare data infrastructure → advising founders.
Lina Scroggins spent 17 years at Google building systems before playbooks existed.
On First Builders- why operations is strategy, systems beat symptoms, and leadership doesn’t need managing people.
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From construction and trucking → the food supply chain.
Charles Julius built platforms at Procore and Motive before founding Loamy to reduce food loss.
On First Builders, he he explains why trust, design, and correctness beat speed.
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@davidcapple left SaaS to build treatments for a rare disease @SharkToothBio affecting his son and over a million others.
On First Builders, he shares why purpose, first principles, and AI matter when building in biotech.
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23 Dec 2025
2025 was the year everyone tried AI.
2026 will be the year everyone cancels 90% of those tools and doubles down on the 10% that actually ship outcomes.
Holiday special episode of First Builders is live. 🎙
Hosted by @AmberIllig & @rachtsui
#FirstBuilders #Startups #VC #AI
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16 Dec 2025
AI doesn’t fail because of bad ideas, it fails because reliability is an afterthought.
On First Builders, @AutoblocksAI founder @haroonc explains why testing & evaluation are the missing layer in AI, especially in healthcare and other high-stakes environments.
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16 Dec 2025
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