How I Built a Video Streaming Service
Turning raw uploads into smooth, quality-adjusting playback — without slowing the app down.
Software Engineer · Nepal
SAHILVERSE
Building the infrastructure that powers tomorrow.
Enter the universe↓Origin
I'm Sahil Dahal — a software engineer from Nepal. Self-taught since 2021, shipping to production since 2024.
I work across the full stack: the interface people see, the server behind it, and the systems keeping it running. When a problem demands depth, I go deep.
I don't build demos. I build software that runs — a package with 4,200+ installs, a platform people use daily, a deepfake detector that hits 95% accuracy.
Expansion
It wasn't planned.
It accreted.
Building since 2021 · Shipped to production
YearProject
2024
Full-stack cinema booking platform with interactive seat maps, eSewa payment integration, and QR-coded tickets. Prisma transactions ensure concurrent double-booking is structurally impossible.
2025
A programming language with Nepali-keyword syntax, built from scratch. Complete pipeline: custom lexer, recursive-descent parser, and tree-walking evaluator. Published as a global npm package.
2025
eSewa Python SDKlive
Open-source Python package for integrating Nepal's primary payment gateway into any application. Framework-agnostic, published to PyPI — 4,200+ total downloads, 350+ monthly installs.
2025–26
Deviolive
Full-scale developer learning platform. Isolated multi-language code execution, GPU-accelerated video transcoding via BullMQ, on-demand CTF lab orchestration, real-time collaboration, and gamification — deployed on a self-managed VPS across 11 sprints. 78% of surveyed users said they'd use it.
2026
Multimodal deepfake detection — spatial CNN (EfficientNet-B2) and frequency-domain CNN (FFT + ResNet-18) fused through a custom Cross-Attention architecture with residual connections and Layer Norm. 95% accuracy, 0.99 AUC on FaceForensics++.
2026
Cross-platform journaling application built with .NET MAUI and Blazor Hybrid. Runs natively on Windows, macOS, iOS, and Android — with mood tracking, tagging, and analytics.
Client
Designed and built the complete website for TruthAdvisor Foundation. Live and in production.
Client
Oscar Khadkalive
Designed and built a live personal website for Oscar Khadka, musician and artist.
Transmissions
Broadcasts, outward.
Deep dives into how I actually built these systems (Coming soon).
How I Built a Deepfake Detector
Two neural networks, one answer: telling real faces from AI-generated ones.
Inside Devio: Running Code Safely
How Devio runs a stranger's code without putting anything at risk.
Composition
Three backend ecosystems.
Database to screen.
Down to the metal.
Languages
- TypeScript
- Python
- C#
- Java
- C++
Frontend
- React
- Next.js
- React Native
- Tailwind
Backend
- Node
- Express
- NestJS
- Django REST
- ASP.NET Core
Systems
- Docker
- Redis
- BullMQ
- MinIO
- FFmpeg
- Nginx
- Linux
Machine Learning
- PyTorch
- OpenCV
- EfficientNet
- ResNet
Signal