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Mairu Matsuyama
74 posts
Mairu Matsuyama
@lambdascript
Building Paperman 🗞️, a smart digest for YouTube. Solo dev & software engineer from Japan 🇯🇵, married for 3 years. Engineering, indie hacking & lifestyle.
Japan Katılım Aralık 2025
51 Takip Edilen23 Takipçiler
Honest update: I missed Paperman’s release date. Daily progress was rough too while juggling my day job. Not proud of it, but I’m not stopping. Keep building, keep shipping — that’s all that matters.
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Painfully relatable.
I should be shipping, doing SEO, tuning ads.
Instead I started studying English "for the future"… and somehow opened a YouTube channel.
It's anxiety dressed up as productivity.
Stealing your nightly reflection habit. That's the reset I need.
Fred@hustle_fred
this week was a big learning point for me I realized most founders stay stuck because they keep doing what feels good not what actually grows the business as example you know you should do SEO but instead you redesign your logo because it is fun but there is a way to fix this every day before sleep I reflect whether tasks I did today were actually important, or they were just fun cause I would rather do boring stuff now but feel happier overall knowing that my product growth
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@FlorinPop17 When your mom said "just take out the trash real quick" 🔥
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If your Vite HMR suddenly stops working after switching to git worktree — this might be why.
Vite hardcodes .git/** as ignored in chokidar. If your project path is .git/worktree/feature-*, every file save is silently ignored. The !negation workaround doesn't work either (vitejs/vite#21045).
Built a plugin that runs a sidecar watcher to fix it 🔧
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Burnout culture exists because people are scared — scared of losing their place in the game.
But engineers didn't get into this to play that game. We did it because it was fun. Because the internet was magic. Because a dumb little open source project felt like everything.
Maybe the cure isn't more grind. It's remembering why you started.
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google searches for "burnout" are at an all-time high 😱
we have collectively decided that's just what building looks like and we're still calling it the price of ambition
the grind is real, I'm not here to tell you otherwise
building a startup requires it, you can't escape it
I have 5 products, a fully remote team across multiple countries and every day I have at least 3 fires to stop - some days it's 10 🤯
and somewhere in the back of your head, you're also watching AI companies swallow up entire categories overnight, wondering if your product is next
that's the deal you sign when you decide to build
but nobody talks about the real cost - burn out, anxiety and other countless mental health issues
and most founders hide their stress from the people around them - even from their own co-founders
we've made suffering the default setting and we wear it like a badge
I refuse to do so 🤷🏻
today I watched my kid navigate an obstacle course in the trees - fully focused, figuring it out step by step, no help needed
nothing better than seeing your kid achieving little big things 😍
that moment didn't fix anything on my to-do list, but it reminded me what i'm actually building for
that's my way of staying sane 😇
you need to find yours
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Everyone's posting their win screenshots. Let me show you what a brand new, invisible product actually looks like.
- 0 users
- 0 waitlist signups
But here's what's interesting — search ads are bringing real people to my page. Real humans who saw something and clicked.
Does this make you despair?
"Getting a product in front of people is brutally hard…"
Or does it excite you?
"Strangers are already finding it. If I just keep showing up, that first user might be closer than I think."
I'm 100% the second one. 🔥
The silence isn't permanent. Ship anyway.
#buildinpublic #indiehacker
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I've just started learning English so I can connect with more people on X.
Expect to see a lot of posts from me in English!
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@RhysSullivan Telling Claude not to read .env is just telling it where the treasure is buried 💀
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the people who think this stops claude from being able to read your envs
Daniel San@dani_avila7
If you don't want Claude to read your .env files Just add this to your .claude/settings.json
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Customer service has always been the foundation of trust — across every era.
Many developers believe that improving product quality is what builds trust. But that's not quite right.
It's simpler than that: people need the human side of your product to be frictionless.
And the most critical factor? Speed.
— Speed of response to inquiries
— Speed of response to reviews
— Speed of response to bug reports
That consistency is what stacks trust, one interaction at a time.
Timothy Bramlett@TimothyBramlett
Customer service is what makes or breaks startups
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@romanbuildsaas I've heard that success is proportional to how far you move in life. Go crush it in San Francisco — the real epicenter! Someday I want to leave Japan and take that leap too 🔥
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@arvidkahl Agree. Though the OAuth-only frustration cuts the other way too — try signing up with a mailing list address and you're just out of luck. user/password handles edge cases OAuth can't.
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Oauth is great until it’s not.
I have a strong feeling that this incident will see a few security playbooks adjusted to “user/password only for external services.”
Gergely Orosz@GergelyOrosz
The Vercel security breach is a reminder that each and every SaaS tool your team uses IS a security risk of its own - especially if they need broad data access to eg email, internet docs etc (many AI tools do just this) Security teams onboarding new vendors happens for a reason.
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@sflorimm AI closes the skill gap. But companies don't just hire skills — they hire trust. And trust is built through networks, credentials, and time. Students have none of those yet. That's not a talent problem. It's a gatekeeping problem.
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I can no longer imagine a future where we keep relying on cloud AI services.
The risk is too real: companies fully migrate to cloud AI, lay off their teams, then find their entire operation held hostage by a single vendor's policy decision.
Pushing local LLMs forward isn't a nice-to-have anymore. It's urgent.
Pato Molina@patomolina
Anthropic decidió dar de baja a toda nuestra organización por una supuesta infracción de sus condiciones de uso. Qué política específica infringimos no tengo ni la menor idea: simplemente recibimos un mail y listo, adiós Claude. Si querés apelar la medida hay que completar un Google Form, así de ridículo como suena. De golpe más de 60 personas se quedaron sin una herramienta fundamental para trabajar. Integraciones, skills, historial de conversaciones: todo perdido o, en el mejor de los casos, parado por tiempo indeterminado. Enorme aprendizaje para cualquier empresa de software que dependa de herramientas de IA en procesos críticos. Nunca hay que poner todos los huevos en una canasta.
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@Niklas_Sikorra People never stop to think about the tradeoffs at the time. Those same engineers will be cursing their own code in 6 months — "who the hell wrote this?!" — fully forgetting it was them 😂
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🤣🤣 an awesome problem to have.
Kristo Käärmann@kaarmann
Now that we're soon running out of 32-bit namespace for transfer IDs at @Wise, the engineers are annoyed with me choosing int over long when I wrote the first lines of code in 2010. But why don't they appreciate the $17 of savings in storage cost over years!? 🤷
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@FlorinPop17 Work and life aren’t opposites to balance — they’re more like Chip & Dale. Always together, sometimes chaotic, occasionally fighting each other… but inseparable.
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@Niklas_Sikorra Had no idea, so I asked AI. Confirmed by TechCrunch — names, emails, phone numbers & booking details leaked. Hackers are already using it for WhatsApp phishing. If you have a booking, watch out for suspicious messages.
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