#learninginpublic — Public Fediverse posts

Day 3/100 of my startup learning series.

Today’s reflection:

Startup growth is rarely linear.

Most companies move through:

Idea → MVP → Traction → Scale → Exit

And often pivot multiple times in between.

The real skill is adapting through uncertainty.

#LearningInPublic #Startups

Day 3/100 of my startup learning series.

Today’s reflection:

Startup growth is rarely linear.

Most companies move through:

Idea → MVP → Traction → Scale → Exit

And often pivot multiple times in between.

The real skill is adapting through uncertainty.

#LearningInPublic #Startups

Day 3/100 of my startup learning series.

Today’s reflection:

Startup growth is rarely linear.

Most companies move through:

Idea → MVP → Traction → Scale → Exit

And often pivot multiple times in between.

The real skill is adapting through uncertainty.

#LearningInPublic #Startups

Day 3/100 of my startup learning series.

Today’s reflection:

Startup growth is rarely linear.

Most companies move through:

Idea → MVP → Traction → Scale → Exit

And often pivot multiple times in between.

The real skill is adapting through uncertainty.

#LearningInPublic #Startups

Been learning quantum on the side for months. What tripped me up wasn't the math — it was how often "canonical" circuits from papers and tutorials fail quietly. Broken Hamiltonians. Reversed bit orders. Silent API drift.

So I built a personal library where every circuit is checked against its reference output before it's listed. 50+ curated circuits across Qiskit, PennyLane, and Cirq. No signup required.

→ https://qubithub.co?utm_source=mastodon&utm_medium=social&utm_campaign=m25-library-open&utm_content=personal

#LearningInPublic #QuantumComputing #Qiskit

Been learning quantum on the side for months. What tripped me up wasn't the math — it was how often "canonical" circuits from papers and tutorials fail quietly. Broken Hamiltonians. Reversed bit orders. Silent API drift.

So I built a personal library where every circuit is checked against its reference output before it's listed. 50+ curated circuits across Qiskit, PennyLane, and Cirq. No signup required.

→ https://qubithub.co?utm_source=mastodon&utm_medium=social&utm_campaign=m25-library-open&utm_content=personal

#LearningInPublic #QuantumComputing #Qiskit

Season 2, Episode 9 is live.
Estimates behave, contours close, and a late‑night mistake gets fixed the right way.
Mathematics in motion not just results, but refinement.
#Mathematics #Proofs #LearningInPublic
https://cortexdrifter.blogspot.com/2026/04/a-small-taste-from-my-new-book-season-2_17.html

Season 2, Episode 9 is live.
Estimates behave, contours close, and a late‑night mistake gets fixed the right way.
Mathematics in motion not just results, but refinement.
#Mathematics #Proofs #LearningInPublic
https://cortexdrifter.blogspot.com/2026/04/a-small-taste-from-my-new-book-season-2_17.html

Season 2, Episode 9 is live.
Estimates behave, contours close, and a late‑night mistake gets fixed the right way.
Mathematics in motion not just results, but refinement.
#Mathematics #Proofs #LearningInPublic
https://cortexdrifter.blogspot.com/2026/04/a-small-taste-from-my-new-book-season-2_17.html

Season 2, Episode 9 is live.
Estimates behave, contours close, and a late‑night mistake gets fixed the right way.
Mathematics in motion not just results, but refinement.
#Mathematics #Proofs #LearningInPublic
https://cortexdrifter.blogspot.com/2026/04/a-small-taste-from-my-new-book-season-2_17.html

Season 2, Episode 9 is live.
Estimates behave, contours close, and a late‑night mistake gets fixed the right way.
Mathematics in motion not just results, but refinement.
#Mathematics #Proofs #LearningInPublic
https://cortexdrifter.blogspot.com/2026/04/a-small-taste-from-my-new-book-season-2_17.html

Quantum teleportation: the circuit that broke my intuition.

3 qubits. Alice shares a Bell pair with Bob, entangles her message qubit, measures, sends 2 classical bits. Bob corrects. State preserved.

No FTL. Entanglement consumed. Original destroyed — no-cloning satisfied.

What quantum protocol seemed impossible until you built it?

→ https://qubithub.co/circuits/e99b8b75-b2fd-47b7-a7d1-ad786ae177c5

#LearningInPublic #QuantumComputing

Quantum teleportation: the circuit that broke my intuition.

3 qubits. Alice shares a Bell pair with Bob, entangles her message qubit, measures, sends 2 classical bits. Bob corrects. State preserved.

No FTL. Entanglement consumed. Original destroyed — no-cloning satisfied.

What quantum protocol seemed impossible until you built it?

→ https://qubithub.co/circuits/e99b8b75-b2fd-47b7-a7d1-ad786ae177c5

#LearningInPublic #QuantumComputing

I have now decided to use a top-down behavior in Gd for player movement.  The player object can now move left, right , down and even go up! Basic movement is in and it works.

#LearningInPublic #IndieDev #GDevelop5

Two algorithms define NISQ quantum computing: VQE and QAOA.

Both variational — quantum circuit + classical optimizer. Quantum part explores an exponentially large space. Classical part steers.

VQE finds molecular energies. QAOA targets combinatorial optimization. Same structure, different objectives.

The surprise: ansatz design matters more than which optimizer you pick.

If you've tried VQE: which ansatz worked for you?

#LearningInPublic #QuantumComputing

Two algorithms define NISQ quantum computing: VQE and QAOA.

Both variational — quantum circuit + classical optimizer. Quantum part explores an exponentially large space. Classical part steers.

VQE finds molecular energies. QAOA targets combinatorial optimization. Same structure, different objectives.

The surprise: ansatz design matters more than which optimizer you pick.

If you've tried VQE: which ansatz worked for you?

#LearningInPublic #QuantumComputing

Two circuits, two lessons.

Bell State: entanglement in 2 gates. Measure both qubits — |00⟩ or |11⟩, nothing else. Perfect correlation.

Grover's Search: one oracle query flips a phase you can't observe directly. One diffusion step turns that invisible flip into a measurable amplitude boost. 2 qubits, 100% success.

What was the first quantum algorithm that clicked for you?

#LearningInPublic #QuantumComputing

Two circuits, two lessons.

Bell State: entanglement in 2 gates. Measure both qubits — |00⟩ or |11⟩, nothing else. Perfect correlation.

Grover's Search: one oracle query flips a phase you can't observe directly. One diffusion step turns that invisible flip into a measurable amplitude boost. 2 qubits, 100% success.

What was the first quantum algorithm that clicked for you?

#LearningInPublic #QuantumComputing

Tried something different with The Wealth of Nations—built a reader instead of just reading it.

Inspired by Karpathy’s idea of interacting with text using LLMs:
https://x.com/karpathy/status/1886200943471157418

My latest vibecoding experiment:
https://mrdee.in/vibecoding/vibecoding-012-wealth-of-nations-reader/

Classic texts are dense. Linear reading feels… limiting.

This is an attempt to turn reading into something more interactive, exploratory—almost conversational.

Less “consume”, more “engage”.

#vibecoding #learninginpublic #toolsforthought #ClassicBooks #reading

Tried something different with The Wealth of Nations—built a reader instead of just reading it.

Inspired by Karpathy’s idea of interacting with text using LLMs:
https://x.com/karpathy/status/1886200943471157418

My latest vibecoding experiment:
https://mrdee.in/vibecoding/vibecoding-012-wealth-of-nations-reader/

Classic texts are dense. Linear reading feels… limiting.

This is an attempt to turn reading into something more interactive, exploratory—almost conversational.

Less “consume”, more “engage”.

#vibecoding #learninginpublic #toolsforthought #ClassicBooks #reading

Tried something different with The Wealth of Nations—built a reader instead of just reading it.

Inspired by Karpathy’s idea of interacting with text using LLMs:
https://x.com/karpathy/status/1886200943471157418

My latest vibecoding experiment:
https://mrdee.in/vibecoding/vibecoding-012-wealth-of-nations-reader/

Classic texts are dense. Linear reading feels… limiting.

This is an attempt to turn reading into something more interactive, exploratory—almost conversational.

Less “consume”, more “engage”.

#vibecoding #learninginpublic #toolsforthought #ClassicBooks #reading

Tried something different with The Wealth of Nations—built a reader instead of just reading it.

Inspired by Karpathy’s idea of interacting with text using LLMs:
https://x.com/karpathy/status/1886200943471157418

My latest vibecoding experiment:
https://mrdee.in/vibecoding/vibecoding-012-wealth-of-nations-reader/

Classic texts are dense. Linear reading feels… limiting.

This is an attempt to turn reading into something more interactive, exploratory—almost conversational.

Less “consume”, more “engage”.

#vibecoding #learninginpublic #toolsforthought #ClassicBooks #reading

Tried something different with The Wealth of Nations—built a reader instead of just reading it.

Inspired by Karpathy’s idea of interacting with text using LLMs:
https://x.com/karpathy/status/1886200943471157418

My latest vibecoding experiment:
https://mrdee.in/vibecoding/vibecoding-012-wealth-of-nations-reader/

Classic texts are dense. Linear reading feels… limiting.

This is an attempt to turn reading into something more interactive, exploratory—almost conversational.

Less “consume”, more “engage”.

#vibecoding #learninginpublic #toolsforthought #ClassicBooks #reading

I published my first posts on quantum computing.

One about coming back to quantum after 20 years. The other — an audit of 50 circuits I'd built, line by line.

Most humbling find: my H₂ VQE had an incorrect Hamiltonian coefficient. The optimized energy looked plausible. I only caught it by re-deriving from second quantization.

"It gives the right answer" ≠ "it's correct."

→ https://qubithub.co/blog/why-i-am-building-qubithub
→ https://qubithub.co/blog/auditing-50-quantum-circuits

#LearningInPublic #QuantumComputing

I published my first posts on quantum computing.

One about coming back to quantum after 20 years. The other — an audit of 50 circuits I'd built, line by line.

Most humbling find: my H₂ VQE had an incorrect Hamiltonian coefficient. The optimized energy looked plausible. I only caught it by re-deriving from second quantization.

"It gives the right answer" ≠ "it's correct."

→ https://qubithub.co/blog/why-i-am-building-qubithub
→ https://qubithub.co/blog/auditing-50-quantum-circuits

#LearningInPublic #QuantumComputing

What makes a great quantum circuit README?

After rewriting 50 READMEs, I settled on 4 layers:

1. Intuition — the physical picture, no equations
2. How it works — what each gate does to the state
3. The math — state evolution for those who want proof
4. Expected output — what you should see when you run it

Each layer for a different reader: beginner → student → physicist → experimenter.

Most READMEs I've seen only have layer 2. Which do you skip to first?

#QuantumComputing #LearningInPublic

I audited 50 quantum circuits line by line. Three bugs:

1. My H₂ VQE had a wrong Hamiltonian coefficient. The optimizer still converged. It gave the right answer. The Hamiltonian was wrong.

2. 4 PennyLane circuits broke after a NumPy update. Version pinning matters.

3. Qiskit's little-endian qubit ordering silently changes results when porting between frameworks.

Lessons: "it converges" ≠ "it's correct." Full write-up Monday.

https://qubithub.co

#QuantumComputing #LearningInPublic

I audited 50 quantum circuits line by line. Three bugs:

1. My H₂ VQE had a wrong Hamiltonian coefficient. The optimizer still converged. It gave the right answer. The Hamiltonian was wrong.

2. 4 PennyLane circuits broke after a NumPy update. Version pinning matters.

3. Qiskit's little-endian qubit ordering silently changes results when porting between frameworks.

Lessons: "it converges" ≠ "it's correct." Full write-up Monday.

https://qubithub.co

#QuantumComputing #LearningInPublic

I studied physics at Göttingen, where quantum mechanics was born (Heisenberg, Born, Jordan — 1925).

20 years in software later, the centenary year pulled me back. Tried reproducing a circuit from a paper. 15 lines of code, 3 hours of setup.

So I built QubitHub — free, browser-based. Run Qiskit, PennyLane, Cirq circuits. No install. 50 curated circuits.

Still learning. What would make this useful for you? → https://qubithub.co

#QuantumComputing #LearningInPublic #Physics

Rest is part of the system!

Burnout is the #1 reason people quit their cert journey 3 months in. Schedule recovery the same way you schedule study.

The people who make it in this field aren't always the most talented.
They're the most organized and the most consistent.

What's one habit that's made the biggest difference in your cybersecurity growth? 👇

#InfoSec #CyberSecurity #CertPrep #OSCP #BlueTeam #RedTeam #Productivity #CareerGrowth #LearningInPublic

Rest is part of the system!

Burnout is the #1 reason people quit their cert journey 3 months in. Schedule recovery the same way you schedule study.

The people who make it in this field aren't always the most talented.
They're the most organized and the most consistent.

What's one habit that's made the biggest difference in your cybersecurity growth? 👇

#InfoSec #CyberSecurity #CertPrep #OSCP #BlueTeam #RedTeam #Productivity #CareerGrowth #LearningInPublic

🦀 Rust Weekly Log

📡 RustPulse
Postgres persistence with sqlx + documented schema init & verification
https://vinecksie.super.site/rustpulse

🔐 Sealed in Rust Crypto book
Identity Systems chapter: Argon2 password storage in real architectures
https://vinecksie.github.io/sealed-in-rust/03-domains/03-00-identity-systems.html

▶️ ChaCha20 video
https://youtu.be/UUQj-9SiKKg

#rust #cryptography #backend #security #learninginpublic

I made another ART!

I think I've got the hang of exciting features like straight lines, using colours, changing brushes, and adding text using a font (Shantell Sans). I can even make speech bubbles.

For this, my third ever comic, I was confronted with alarming new challenges that I was less prepared for. Like drawing objects and people!

#comic #Procreate #LearningInPublic

I made another ART!

I think I've got the hang of exciting features like straight lines, using colours, changing brushes, and adding text using a font (Shantell Sans). I can even make speech bubbles.

For this, my third ever comic, I was confronted with alarming new challenges that I was less prepared for. Like drawing objects and people!

#comic #Procreate #LearningInPublic

I made another ART!

I think I've got the hang of exciting features like straight lines, using colours, changing brushes, and adding text using a font (Shantell Sans). I can even make speech bubbles.

For this, my third ever comic, I was confronted with alarming new challenges that I was less prepared for. Like drawing objects and people!

#comic #Procreate #LearningInPublic

Wrapped the Google Cybersecurity cert today. All 9 courses, 3 months (half the suggested timeline). While sick. Poor judgment but good timing.

Real talk: The cert is entry-level foundations. The actual learning starts now.

What I built during the program:
- Risk assessment docs (NIST CSF)
- Network hardening guides
- Python automation for log parsing
- Incident response workflows
- Full portfolio: https://github.com/kqthrs/cybersec-cert-work

Two 2-week gaps in the middle where I almost didn't restart. Momentum is fragile.

Next steps: TryHackMe, HTB, actually applying this stuff in labs. Then hunting for that first SOC analyst role.

Certificate was the permission slip. Now comes the real work.

Thanks to everyone here who answered my newbie questions along the way. Infosec community is genuinely helpful.

#cybersecurity #infosec #soc #learninginpublic #getcertified

Wrapped the Google Cybersecurity cert today. All 9 courses, 3 months (half the suggested timeline). While sick. Poor judgment but good timing.

Real talk: The cert is entry-level foundations. The actual learning starts now.

What I built during the program:
- Risk assessment docs (NIST CSF)
- Network hardening guides
- Python automation for log parsing
- Incident response workflows
- Full portfolio: https://github.com/kqthrs/cybersec-cert-work

Two 2-week gaps in the middle where I almost didn't restart. Momentum is fragile.

Next steps: TryHackMe, HTB, actually applying this stuff in labs. Then hunting for that first SOC analyst role.

Certificate was the permission slip. Now comes the real work.

Thanks to everyone here who answered my newbie questions along the way. Infosec community is genuinely helpful.

#cybersecurity #infosec #soc #learninginpublic #getcertified

Wrapped the Google Cybersecurity cert today. All 9 courses, 3 months (half the suggested timeline). While sick. Poor judgment but good timing.

Real talk: The cert is entry-level foundations. The actual learning starts now.

What I built during the program:
- Risk assessment docs (NIST CSF)
- Network hardening guides
- Python automation for log parsing
- Incident response workflows
- Full portfolio: https://github.com/kqthrs/cybersec-cert-work

Two 2-week gaps in the middle where I almost didn't restart. Momentum is fragile.

Next steps: TryHackMe, HTB, actually applying this stuff in labs. Then hunting for that first SOC analyst role.

Certificate was the permission slip. Now comes the real work.

Thanks to everyone here who answered my newbie questions along the way. Infosec community is genuinely helpful.

#cybersecurity #infosec #soc #learninginpublic #getcertified

Wrapped the Google Cybersecurity cert today. All 9 courses, 3 months (half the suggested timeline). While sick. Poor judgment but good timing.

Real talk: The cert is entry-level foundations. The actual learning starts now.

What I built during the program:
- Risk assessment docs (NIST CSF)
- Network hardening guides
- Python automation for log parsing
- Incident response workflows
- Full portfolio: https://github.com/kqthrs/cybersec-cert-work

Two 2-week gaps in the middle where I almost didn't restart. Momentum is fragile.

Next steps: TryHackMe, HTB, actually applying this stuff in labs. Then hunting for that first SOC analyst role.

Certificate was the permission slip. Now comes the real work.

Thanks to everyone here who answered my newbie questions along the way. Infosec community is genuinely helpful.

#cybersecurity #infosec #soc #learninginpublic #getcertified

Loving Tailwind CSS. Now that I'm using it more often and committing some things to muscle memory, it's making the styling of an app much easier, especially when I'm doing mobile-first styling. One thing that's needed though - a native "toggle" element in HTML. #learninginpublic #webdev #100devs

Loving Tailwind CSS. Now that I'm using it more often and committing some things to muscle memory, it's making the styling of an app much easier, especially when I'm doing mobile-first styling. One thing that's needed though - a native "toggle" element in HTML. #learninginpublic #webdev #100devs

Loving Tailwind CSS. Now that I'm using it more often and committing some things to muscle memory, it's making the styling of an app much easier, especially when I'm doing mobile-first styling. One thing that's needed though - a native "toggle" element in HTML. #learninginpublic #webdev #100devs

🔥 Khởi động cộng đồng SaaS học tập và kết nối!
Cảm hứng cộng tác: học tập công khai, phát triển cùng nhau, chia sẻ ý tưởng (không lo bị đánh giá) & xây dựng từng bước.
Dành cho:
💡 Ai có ý tưởng nhưng chưa biết bắt đầu
🛠 Người học SaaS/công nghệ/startup
🤝 Người thích hợp tác thay vì cạnh tranh

Bạn là người mới, tò mò hay có kinh nghiệm muốn chia sẻ đều được hoan nghênh!

#SaaS #Startup #LearningInPublic #KhởiNghiệp #HọcThuật #CộngĐồngSángTạo

https://www.reddit.com/r/SaaS/comme

What’s one thing you want to get better at this year?

Tech skill, soft skill, or something completely unrelated? all answers welcome.

#LearningInPublic #GrowthMindset #TechCommunity

If you’re building something meaningful in Web3,
let’s connect and exchange value.

#Web3Career #LearningInPublic #BlockchainJobs
2/2

A mistake is not the end of the path — it’s part of how the path forms.
In the forest, even decay becomes contribution.

This quote lands differently when we see error as a natural process:
a bit of compost in the soil of worthwhile work.

#LifeboatAcademy #Farmastery #RegenerativeLiving #Ecology #LearningInPublic #CompostMindset #MutualChange

✨ Life update ✨

After a lot of prayer and reflection, I’ve made the hard decision to step away from college. I finished a 5‑week course at Colorado Christian University, but the final project (30 pages!) left me physically sick and in a lot of pain, especially in my hands. By the time the next course started, I was already falling behind, and it became clear I just couldn’t keep pushing through.

This was my fourth attempt at college, and I think I’m finally accepting that maybe it’s not the right path for me. That’s bittersweet since college has been my dream since I was little, but I’m choosing peace over burnout. I’ll be using my student loan refund check to cover what I owe, so thankfully that part is manageable.

The good news: stepping away from school doesn’t mean stepping away from learning. 🎉 I’ve already started diving back into coding through Codecademy and other resources, and I’m excited to keep building skills in ways that fit my health and energy better. Software development and accessibility work are still passions of mine, and I’m trusting God to open doors in those areas.

So, prayers appreciated for wisdom and peace as I let go of one dream and lean into new ones. And if you’ve ever had to pivot from a long‑held plan, I’d love to hear how you found joy in the new path. 💜
#LifeUpdate #ChronicIllness #FaithJourney #TrustGod #CodingJourney #LearningInPublic

✨ Life update ✨

After a lot of prayer and reflection, I’ve made the hard decision to step away from college. I finished a 5‑week course at Colorado Christian University, but the final project (30 pages!) left me physically sick and in a lot of pain, especially in my hands. By the time the next course started, I was already falling behind, and it became clear I just couldn’t keep pushing through.

This was my fourth attempt at college, and I think I’m finally accepting that maybe it’s not the right path for me. That’s bittersweet since college has been my dream since I was little, but I’m choosing peace over burnout. I’ll be using my student loan refund check to cover what I owe, so thankfully that part is manageable.

The good news: stepping away from school doesn’t mean stepping away from learning. 🎉 I’ve already started diving back into coding through Codecademy and other resources, and I’m excited to keep building skills in ways that fit my health and energy better. Software development and accessibility work are still passions of mine, and I’m trusting God to open doors in those areas.

So, prayers appreciated for wisdom and peace as I let go of one dream and lean into new ones. And if you’ve ever had to pivot from a long‑held plan, I’d love to hear how you found joy in the new path. 💜
#LifeUpdate #ChronicIllness #FaithJourney #TrustGod #CodingJourney #LearningInPublic

✨ Life update ✨

After a lot of prayer and reflection, I’ve made the hard decision to step away from college. I finished a 5‑week course at Colorado Christian University, but the final project (30 pages!) left me physically sick and in a lot of pain, especially in my hands. By the time the next course started, I was already falling behind, and it became clear I just couldn’t keep pushing through.

This was my fourth attempt at college, and I think I’m finally accepting that maybe it’s not the right path for me. That’s bittersweet since college has been my dream since I was little, but I’m choosing peace over burnout. I’ll be using my student loan refund check to cover what I owe, so thankfully that part is manageable.

The good news: stepping away from school doesn’t mean stepping away from learning. 🎉 I’ve already started diving back into coding through Codecademy and other resources, and I’m excited to keep building skills in ways that fit my health and energy better. Software development and accessibility work are still passions of mine, and I’m trusting God to open doors in those areas.

So, prayers appreciated for wisdom and peace as I let go of one dream and lean into new ones. And if you’ve ever had to pivot from a long‑held plan, I’d love to hear how you found joy in the new path. 💜
#LifeUpdate #ChronicIllness #FaithJourney #TrustGod #CodingJourney #LearningInPublic

✨ Life update ✨

After a lot of prayer and reflection, I’ve made the hard decision to step away from college. I finished a 5‑week course at Colorado Christian University, but the final project (30 pages!) left me physically sick and in a lot of pain, especially in my hands. By the time the next course started, I was already falling behind, and it became clear I just couldn’t keep pushing through.

This was my fourth attempt at college, and I think I’m finally accepting that maybe it’s not the right path for me. That’s bittersweet since college has been my dream since I was little, but I’m choosing peace over burnout. I’ll be using my student loan refund check to cover what I owe, so thankfully that part is manageable.

The good news: stepping away from school doesn’t mean stepping away from learning. 🎉 I’ve already started diving back into coding through Codecademy and other resources, and I’m excited to keep building skills in ways that fit my health and energy better. Software development and accessibility work are still passions of mine, and I’m trusting God to open doors in those areas.

So, prayers appreciated for wisdom and peace as I let go of one dream and lean into new ones. And if you’ve ever had to pivot from a long‑held plan, I’d love to hear how you found joy in the new path. 💜
#LifeUpdate #ChronicIllness #FaithJourney #TrustGod #CodingJourney #LearningInPublic