Alexander | Building PetSilence

Independent builder creating simple, privacy-friendly web tools.

Currently building PetSilence — a free classroom noise monitor that never records audio.

[Alexander | Building PetSilence @alexliaobuilds]

I built PetSilence — a free, browser-based classroom noise monitor.

It gives students visual sound cues, a focus timer, and stars. Sound is measured locally; classroom audio is never recorded or uploaded.

I’m looking for early feedback from educators:

https://t.co/utKzhl0JAf

[Alexander | Building PetSilence @alexliaobuilds]

haha

[Duolingo @duolingo]

they named a phone after me and made it bend over 😭

[Alexander | Building PetSilence @alexliaobuilds]

Paying $2,000 in 2026 to unlock your phone with a thumbprint like it's a 2019 iPad is peak Apple innovation.

[Alexander | Building PetSilence @alexliaobuilds]

@DailyCurat686 @X thx, have followed you

[Alexander | Building PetSilence @alexliaobuilds]

Hey
@X
Algo
I'm looking to #connect with people interested in:
- Building Products
- Marketing
- Freelancing
- Building in Public
If that's you, let's #connect

[Alexander | Building PetSilence @alexliaobuilds]

@markproduct absolutely

[Alexander | Building PetSilence @alexliaobuilds]

The modern indie hacker doom loop:
1. Come up with a brilliant idea
2. Vibe coding goes crazy—refactor the architecture three times a day
3. Product is live, time to market
4. Hit with sheer dread and resistance
5. 'Wait, let me just add one more feature to make it perfect'

[Alexander | Building PetSilence @alexliaobuilds]

@MsSarahSEL I built a free browser-based tool for exactly this. It gives students a visual quiet/warning/too-loud cue and never records classroom audio. Please check my pinned post and look forward your feedback

[Alexander | Building PetSilence @alexliaobuilds]

@kerri_tobin I built a free browser-based tool for exactly this. It gives students a visual quiet/warning/too-loud cue and never records classroom audio. Full disclosure: I’m the maker, and I’d genuinely appreciate feedback: https://t.co/utKzhl0JAf

[Alexander | Building PetSilence @alexliaobuilds]

@Wooly0s That sounds exhausting. Have you tried giving the class a visual volume target, so they can see when the room is getting too loud without you having to repeat yourself?

[Alexander | Building PetSilence @alexliaobuilds]

Different pockets, same passion — just different toys. 😏

Broke people play with cars.
Rich people play with watches.
Ultra-rich people drive GPT-6 Astra Ultra Fast. 🚀

What’s your toy?

#GPT6 #AI #AstraUltraFast

[Alexander | Building PetSilence @alexliaobuilds]

so encouraging

[Marc Lou @marclou]

Today is a special day for me.

I've made $3M with my 36 startups.

Solo.
85% margin.
Bootstrapped.

It took 10 years, and I loved every second of it.

After failing as an entrepreneur for 5 years, I got a job in 2021.

That's when I discovered @levelsio's journey and decided to try again.

"If he can do it, maybe I can too?"

So I started building tiny startups and writing about it.

2021 and 2022 were quiet, but I was having fun.

Everything changed in 2023 when I launched ShipFast and made my first million.

Building something people finally paid for and enjoyed made me so happy.

My first 5 years of failures taught me not to get emotionally attached to a project, because everything goes to 0 eventually.

So I just kept shipping.

It's 2026, and I've launched 36 startups.

50% never made money.
Only 11% made decent money.

Back in 2016, when I started, I believed I would make it.

If I had known it would take 7 years of failure, I probably would never have started.

That's why I'm stupidly optimistic.

I don't think in years. I don't dream big.

I think in weeks. I build tiny projects fast. And I quit even faster.

That's how I wake up happy, enjoy the journey, and eventually build life-changing projects.

If you've been following the journey, thank you. You've given my posts a sense of purpose, which has kept me going, and I'm very grateful for this. ❤️

[Alexander | Building PetSilence @alexliaobuilds]

@PedroGuiti audience first

[Alexander | Building PetSilence @alexliaobuilds]

@Guronnimo https://t.co/AcUDIH4Lm1 a classroom noise meter

[Alexander | Building PetSilence @alexliaobuilds]

@HeyAliux https://t.co/AcUDIH4Lm1 a classroom noise meter

[Alexander | Building PetSilence @alexliaobuilds]

@anupamrjp https://t.co/AcUDIH4Lm1

[Alexander | Building PetSilence @alexliaobuilds]

@victor_bigfield can you share how to build the watchlist

[Alexander | Building PetSilence @alexliaobuilds]

the same headache i meet，how do you solve it guys ？

[Richard Judge @richyjudge]

🌍 Distribution → how are you doing it? I think it is my biggest problem right now

[Alexander | Building PetSilence @alexliaobuilds]

Cars for the middle class, watches for the rich, GPT-6 Astra Ultra Fast for the gods.

[Alexander | Building PetSilence @alexliaobuilds]

@AsvdCodes @X thx have followed u

[Alexander | Building PetSilence @alexliaobuilds]

Hey @X algorithm!

#connect me with people interested in:

System Design
Product Development
API Design
Backend Development
AI/ML
Data Science
MLops
Cybersecurity

Guys, let's connect.

[Alexander | Building PetSilence @alexliaobuilds]

@TheHashton @X thx have followed u