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nullderef

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Hi! You can learn more about me here: https://nullderef.com/ :)

meet.hn/city/de-Munich

Socials: - github.com/marioortizmanero

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Pushscroll | Full-Stack Mobile Engineer (KMP) | REMOTE (GMT-3 to GMT+4)

We make people do push-ups before opening addictive apps - verified through camera pose detection. Our goal is to replace doomscrolling with exercise.

500k+ downloads, bootstrapped and profitable, very quickly growing.

Looking for someone strong in Kotlin Multiplatform + Compose Multiplatform + Swift/SwiftUI who works independently, uses AI to ship fast, and can implement a pixel-perfect Figma design.

Bonus: Supabase, Amplitude, native Android/iOS knowledge (e.g., Screen Time).

Small team, work directly with founders, long-term role. We’ve got big plans to make Pushscroll the app of the year, and there are exciting challenges to get there.

Reach out: contact@pushscroll.com

Pushscroll | Full-Stack Mobile Engineer (KMP) | REMOTE (GMT-3 to GMT+4)

We make people do push-ups before opening addictive apps - verified through camera pose detection. Our goal is to replace doomscrolling with exercise.

500k+ downloads, bootstrapped and profitable, very quickly growing.

Looking for someone strong in Kotlin Multiplatform + Compose Multiplatform + Swift/SwiftUI who works independently, uses AI to ship fast, and can implement a pixel-perfect Figma design.

Bonus: Supabase, Amplitude, native Android/iOS knowledge (e.g., Screen Time).

Small team, work directly with founders, long-term role. We’ve got big plans to make Pushscroll the app of the year, and there are a lot of challenging problems to get there.

Reach out: contact@pushscroll.com

Pushscroll | Full-Stack Mobile Engineer (KMP) | REMOTE (GMT-3 to GMT+4) | Full-time | https://pushscroll.com

Screen-time app that makes you do push-ups before you can scroll addictive apps. 350k+ users.

Looking for someone strong in Kotlin Multiplatform + Compose Multiplatform + Swift/SwiftUI who isn't afraid of platform-specific APIs (Screen Time on iOS, Accessibility/UsageStats on Android) and can ship very fast.

Stack: Supabase (auth/DB/edge functions), Superwall, Amplitude, MediaPipe for pose detection. Good design sense matters - you'll be translating Figma → production UI.

Small team, work directly with founders. It’s a long-term role in an exciting app (help us fight doomscrolling!) where you can have a lot of impact. Reach out: contact@pushscroll.com

Building an app where 1 pushup = 1 minute of scrolling allowed [1]. We've fiiinally started to grow and reached a whooping $30k in the last month!!

I was literally thinking about quitting in August. My motivation is now at an all-time high - some users have done >8k pushups :)

As always, the key has been the marketing (10M views on Instagram). But we have to improve the product to make people love it even more. So the roadmap is more full than ever.

[1] https://pushscroll.com

I was building an intentionally annoying app against doomscrolling [1]. Being technical, I tried to focus on product, marketing and more instead of the implementation. But I still didn't ship quick enough. It's so hard. Only after a few months did I start with marketing, and it hit me like a wall.

So I'm giving a try to a project which started with marketing. No implementation, just a TikTok to see if people like it. And holy crap, we got 75k views!

The new idea [2] is easier to explain (1 pushup = 1 minute of scrolling) and already has a community. Plus, not working alone helps me focus on what I'm good at: programming. I don't regret learning about other areas but doing marketing for a living is not my thing.

I'm not getting rid of SpeedBump, though. It's a fun side project and it does help people :)

[1] https://speedbumpapp.com

[2] https://pushscroll.com

TikTok - you don't need followers to get views. It's not easy, especially if you've never used the platform before. But for B2C it's one of the best platforms.

Do founder stories ("I built this") or demos ("here's this SaaS you'll like"). They get less views than memes or tangential videos. But conversion is much higher and you'll get replies from people who liked it or tried it out. So you can send them a message to ask for feedback.

I've been building an intentionally annoying app against doomscrolling [1]. I've recently started with marketing, but oh boy is that out of my comfort zone!

I never thought that as an engineer I'd be doing TikToks. And here I am. It's fun to crack the algorithm little by little, but also frustrating because it's like a black box.

So far, I've discovered that going to the point works best. For example, I was sharing student tips and mentioning my app to improve focus. But conversion and engagement were terrible. Instead, I'm doing founder stories and tutorials, which get less views but more downloads. Plus, I can ask people in the comments for feedback on the app!

I'm happy to be doing something that devs overlook so much: marketing. Even if it's tough and slow. It's been an awesome learning experience.

[1] https://speedbumpapp.com/en/

I've had issues with checking HN every too often. News overload is definitely a problem, too. It's also fun to go check the new posts sometimes.

Some apps like ScreenZen allow you to block websites, if you're on Android. Pretty much any iOS app will let you restrict websites (because it's easier to implement there).

Many of the tools mentioned also support blocking websites, fwiw. This includes ScreenZen on Android and pretty much any app on iOS (it's easier to implement it there)

It's awesome to see a Daylight Computer user in the wild :)

Did you also try out an e-paper phone at some point? And how are you doing in terms of connecting with friends and so on?

I've recently started an indie hacker journey and cannot emphasize how much work it takes. It's incredibly hard to develop the technical side, listen to feedback to improve the product/UX, do SEO, viral marketing, and more.

Hiring more people seems necessary to stay sane -- at least for my project. But you need money for that, which you won't have for a long time. Even tools for all these aspects (Claude, Revid.ai, ahrefs, etc) stack up in subscription costs.

Maybe this is just because I'm getting started, though.

I wish LLMs asked more clarifying questions for precisely this reason. And that they disagreed with me more often.

I'm not sure that when asking for a translation, even with context, they would have replied that my request doesn't make sense (or advised against using LLMs for translation).

Sure, but mostly everyone in English understands speed bump. There's a standard word that's understood by most. In German, you can even see in this post how many people have heard only very different words (they don't even know the rest).

(OP here) I'm thinking of either using "speed bump" in English, or adding the typical European sign for speedbumps for clarity. For now, I'm using Wikipedia's word in the end...

When creating the site's landing page, I had to investigate where to find speed bumps in Munich. I couldn't remember any, but it turns out there's quite a few in the end. Probably not as popular as in other European countries, though. And there's rarely a signal.