I'm Posei

Senior Mobile Developer on paper.
Currently somewhere between mobile, bugs, and production uptime.
Naturally drawn to graphics, game dev, and the lower levels of computing.
Most comfortable in an environment that feels hand-built and personal.

Work Life

Most people know me as a mobile dev, and that’s fair.
But lately, my day job has shifted toward something… broader.

I handle production issues across all platforms: mobile, web, backend.
I monitor systems, triage bugs, respond to reports, and either fix them or delegate them.

I don’t ship many features these days. I keep things alive instead.
Call it fullstack bug handling, if you want. I don’t really know what to call it myself.

So am I fullstack? Technically yes. But only for bugs, not features.
Am I still a mobile dev? Yea.
Am I in an identity crisis? Also yes.

Personal Projects

Outside work, I’m a bit more sure of who I am.

Like most developers, I started with the usual stuff, web frontends, backends, mobile apps.
Not because I loved them, but because they made sense. They’re practical, accessible, and good for building real things quickly.

These days, I’m branching out into game development.
I’ve done a few game jams using Godot, and I’m working on a small-scale commercial project now.
It’s fun. You get something visual and interactive as a result, something you can actually play.

But my deeper interest has shifted toward lower-level things.
I’ve always been curious about how computers really work, how data moves, how rendering happens, what sits behind the abstractions.

That curiosity led me to graphics programming.
It’s one of the few areas where the technical details still matter.
Right now, I’m learning Vulkan by trying to build a simple renderer, possibly an engine, though I’m keeping the scope realistic (I think).

It’s not about chasing performance just for the sake of it.
It’s more that I enjoy seeing what happens when you drop closer to the metal, even if you’re still just drawing triangles.

Philosophy

I care about the process as much as the product.

I like understanding how things work under the hood, memory, data, execution, the stuff the CPU actually does.
That doesn’t mean I reject abstraction. I get why software is written the way it is: for people, for teams, for speed.
You’re not gonna build a POS system by manually managing cache lines and writing a memory arena upfront. It just doesn’t make sense.

Still, I find value in knowing what’s really happening. Even if I’m not optimizing every bit of memory, I like having that mental model.
That’s probably why I’m drawn to graphics programming, it’s one of the few places where you still have to care about the details.

This mindset also shows up in how I set up my environment.

I use:

Neovim, heavily customized
Arch Linux + Sway, because I want control and minimalism
I type on a split keyboard using AKL (Night), not to prevent RSI, but to push past QWERTY’s local optimum

I want tools that feel like limbs, responsive, precise, frictionless.
I’m not saying everyone needs to use Vim. I’m saying you should explore deeply enough to know what works for you. Use VSCode? Great. Just know why.

I’m also forcing myself to get fluent with Windows, even though I hate it.
I want to be coconut oiled, even in the mud.

Hobbies

Gaming’s always been part of my life, but my taste evolved.

PS1/PS2 days: bought games by their covers. Pure vibes.
Teen years: obsessed with AAA. Back when big publishers rarely missed.
Later: fell into the Dota / CS hole. Thousands of hours.
Now: back to vibe-based games that look cool.

I also read a lot of manga and manhwa.
Yes, I know my taste is shallow.
A deep, well-written story with complex characters? Fine, sure.
But the 546th 6/10 isekai with an overpowered protagonist? Good shit.
Another power fantasy manhwa with recycled concepts? We eating good tonight.

While I love hype moment and aura I do still read stuff with actual writing from time to time.

I’m also a fan of Uma Musume.
The horses just speak to me.
My head hurts from nodding and trueing. These horses are literally me.

And then there’s Touhou. I don’t fully know why I love it.
Maybe because it’s the first open source game with a million forks, some of which aren’t even games anymore.
Also: Akatsuki Records is my favorite circle.
Followed closely by Tumeneco.

What This Site Is

This site is a small corner of the internet for the things I build and think about.
If you’re into custom tooling, low-level graphics, or discussing how the protagonist farmed aura for the 50th time in chapter 50 - we might get along.

You can reach me at GitHub or contact@posei.me.