Crypto in the core
The crypto behind vChat and TerraCrypt exists once — in Rust — and iOS, Android and desktop call it through a C ABI. No four implementations drifting apart.
RustC ABISQLCipherpost-quantumVahid
Software architecture · since 2004
Sixteen products — from a post-quantum messenger and a video platform to a fiscal POS for cafés. One person, several languages, my own infrastructure. This is the case file on each one: what was built, what it stands on, where it stands.
scroll
In production · 13
01 Areas
What I do
Four areas, one person. Under each is what actually runs today.
Backend and data
Go with no framework over PostgreSQL/PostGIS, SQLite where it is enough, my own nginx. Fiscal flows to ESIR and LPFR.
GoPostgreSQL/PostGISSQLitenginxApps on the device
iOS and Android natively, desktop through Tauri. One protocol, three clients, one source of truth.
SwiftSwiftUIKotlinTauriWeb and panels
PHP 8.3 applications, static frontends and admin panels with metrics and logs — no heavy CMS.
PHP 8.3TypeScriptJavaScriptSQL
02 Work
Every project has its own page: what was built, what it stands on, where it stands.
Featured · № 04
vCoffee
Café POS & fiscalization. A modern POS for cafés and hospitality, built for the Serbian market and sold as a monthly subscription. Guests order by scanning the table QR; waiters, kitchen and bar work from phones; the owner runs everything from an admin. The design is "thick local, thin cloud": a Tauri desktop box runs a Rust (axum) server, an encrypted SQLite (SQLCipher) store and a React PWA over the venue LAN — fully offline. Serbian fiscalization (ESIR → LPFR) with central licence control over a VPS.
RustTypeScriptSQLPHP
Open case file →
in development
№ 01
vChat
Secure messenger
RustSwiftKotlinin development № 02EU Meet
Video meeting platform
PHPTypeScriptSwiftlive № 03Sandžak Outdoor
Ride & hike tracker
GoSwiftKotlinlive № 05TerraCrypt Messenger
Messenger on a custom curve
SwiftKotlinRustlive № 06Zarp VPN
VPN with a control panel
PHPBashinternal № 07Sea Moon
Browser 3D game
JavaScriptSQLGLSLlive № 08vShopr
Multi-tenant e-commerce
PHPTypeScriptSQLlive № 09Nekretnine
Real-estate platform
TypeScriptJavaScriptlive № 10Firmin
Public revenue portal
TypeScriptPHPSQLlive № 11Smart Parking
Real-time parking spots
PHPTypeScriptSQLlive № 12Vaha Movies
Personal streaming portal
PHPJavaScriptSQLlive № 13Teleprompter
Tool for presenters & streamers
TypeScriptlive № 14Uplatnice & Potvrde
Desktop payment-slip tool
RustTypeScriptlive № 15Vaktija
Prayer times
TypeScriptJavaScriptlive № 16vaha.net
This case file
TypeScriptPHPJavaScriptlive
03 Axis
When things started
Ordered by the year it began — newest first.
2026
2025
2024
2023
2022
04 Numbers
16
projects on file
13
programming languages
6
platforms
22+
years writing code
05 Contact
Contact
For work, collaboration, or a question about any of these systems: