BuildWithMatija

Builds

Products, tools, and technical experiments.

Some are public and open source. Some are private or still in progress. Each writeup explains the problem, the thesis, what I built, what I learned, and where it stands now.

Featured builds

A few selected builds

Selected builds that show product thinking, technical range, and practical execution.

ProductShippedPrivate beta

Farmica

Order operations for direct-to-consumer farms — a spletna naročilnica that collects scattered channel orders into one weekly workflow.

  • Next.js
  • React
  • TypeScript
  • next-intl
  • Tailwind CSS
  • Vercel
  • Brevo
  • Google Analytics 4
View buildVisit

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Products

Product-shaped systems and business experiments.

Browse products

Tools

Reusable utilities, plugins, and workflow tools.

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Technical experiments and research builds.

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All builds

The full archive

ProductShippedPrivate beta

Farmica

Order operations for direct-to-consumer farms — a spletna naročilnica that collects scattered channel orders into one weekly workflow.

  • Next.js
  • React
  • TypeScript
  • next-intl
  • Tailwind CSS
  • Vercel
  • Brevo
  • Google Analytics 4
View buildVisit
ToolActiveOpen source

DropImg

A self-hosted, Docker-first image hosting tool — drag, drop, or paste to get instant public URLs, with built-in multi-user support, S3-compatible storage, and optional background removal.

  • React 19
  • Vite
  • Hono
  • Node.js
  • TypeScript
  • Tailwind CSS 4
  • SQLite
  • Drizzle ORM
  • Garage S3
  • Docker
  • Better Auth
  • Cloudflare
View buildGitHub
LabActiveClosed source

Sports Stream

A multi-camera live streaming stack that turns Android phones into SRT encoders and routes feeds through MediaMTX into OBS.

  • Kotlin
  • Android Camera2
  • RootEncoder
  • MediaMTX
  • Docker
  • SRT
  • RTSP
  • HLS
  • Node.js
  • Express
  • React
  • Vite
  • TypeScript
  • pnpm
  • GitHub Actions
View buildGitHub
ToolActiveOpen source

StreamSpeaker

A system that turns any Android TV into a wireless speaker for a Mac or Android phone, using a custom Core Audio HAL driver and a binary UDP audio protocol over the local network.

  • Swift 6
  • SwiftUI
  • Core Audio (HAL Audio Server Plugin)
  • C (lock-free POSIX shared memory)
  • Kotlin
  • Ktor
  • Android AudioTrack
  • UDP / TCP
  • mDNS / Android NSD
  • SwiftPM
View buildGitHub

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If your company has a workflow, content system, or internal process that needs to become real software, this is the kind of work I can help with.

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