WaveFlow
Modern local music player with a Spotify-like interface. Manage and play your audio library directly from your browser — no subscription, no streaming, no DRM.
Building performant tools and open source software.
Welcome to the InstaZDLL portfolio — a software developer building performant tools and open source software. A growing collection of projects spanning web SaaS, desktop apps, terminal clients and infrastructure stacks, plus contributions to popular open source projects like Stirling-PDF and BentoPDF.
“Hello, I am a learner who likes to code, and do a lot of things. I have a lot of ideas, and soon I will have the skills to build them all.”
Featured projects
Two products in production, each with its own domain.
TPI Flow
The all-in-one platform to plan, document and track your Individual Practical Work: Gantt, Kanban, journal, risk analysis and report generation.
All projects
From web to command-line tools, including desktop and infrastructure.
Vue
Passphrase
Memorable French passphrase generator with entropy scoring and a public REST API. Nuxt 4, Vue 3, strict CSP.
SaaS
Helvetseo
Complete SEO audit tailored to the Swiss market (Google.ch, local.ch, .ch). AI-assisted reports in 4 languages, from 9 CHF.
TypeScript
Advanced Download Manager
Modern self-hosted download manager — YouTube, Twitter/X, Instagram, Pinterest, HLS streams, direct files. Built on React 19, NestJS, BullMQ and yt-dlp.
TypeScript
waveflow-web
WaveFlow web client — React + TanStack Start frontend that talks to the self-hosted waveflow-server.
Plume-Notes
Beautiful cross-platform note-taking app — Expo, React Native, NestJS backend with PostgreSQL. Currently in development.
quick-notes
Lightweight note-taking utility focused on fast capture and minimal friction. Currently in development.
AtlasFlow
Modern enterprise project management. Virtualized Gantt, built-in risk engine, real-time multi-user — built for demanding IT teams. Currently in development.
BlobFlow
Detects and downloads authorized blob, HLS, DASH and direct video media with a native C++/FFmpeg backend. Currently in development.
Parking-Manager
Real-time parking spot reservation app with a visual drag-and-drop layout designer. Built with React 19, Express 5, WebSocket, Prisma & PostgreSQL. Currently in development.
Stirling-PDF
The #1 PDF application on GitHub — edit, convert, OCR, sign, merge PDFs on any device. Self-hosted. Contribution: PR #5855.
BentoPDF
Privacy-first PDF toolkit — process PDFs locally in the browser, never uploaded. Contribution: PR #576.
OmniGet
Free desktop app that downloads videos, music and files from 1000+ sites — just paste a link.
Shell
Harmony
Relationship satisfaction self-assessment quiz for Linux desktop. Native GTK4 / libadwaita interface.
C#
RiskFlow
Native Windows risk-analysis app — multi-analyses, 3×4/4×4/5×5 matrices, risk register and visual heat-map. Offline and self-contained.
Python
plume-tui
Social client built for the terminal: browsing, likes, downloads, cookie-based login and proxy support for Instagram and X.
Python
tui-kart64
Pseudo-3D kart racing game inspired by Mario Kart 64, running entirely in your terminal.
Shell
wp-splendid
Self-hosted hardened WordPress stack on Docker / Podman Compose: Nginx, PHP-FPM, MySQL, Redis object-cache, healthchecks, SELinux-friendly.
Rust
waveflow-server
Self-hosted WaveFlow backend — axum + PostgreSQL, powering multi-device sync, web playback and a future mobile app.
About
Hi, I'm InstaZDLL.
I'm a software developer building performant tools and open source software. This portfolio gathers projects across many domains: web SaaS, desktop applications, terminal clients, and hardened infrastructure stacks.
I like to learn, code and experiment. Some of my own projects are commercial SaaS like Helvetseo (Swiss SEO audit). Others are pure open source: WaveFlow (local music player, split into its waveflow-web and waveflow-server repos), RiskFlow (native Windows risk analysis), advanced-download-manager (multi-source downloader on React 19 + NestJS), plume-tui and tui-kart64 for the terminal, wp-splendid for self-hosted WordPress, plus AtlasFlow (enterprise Gantt), BlobFlow (media downloader), Parking-Manager (real-time parking reservation), Plume-Notes and quick-notes currently in development.
I also contribute to popular open source projects: Stirling-PDF (the #1 PDF app on GitHub), BentoPDF (privacy-first PDF toolkit) and OmniGet (universal downloader).
Each project tries to do one thing well, with a focus on performance, accessibility, and a clean developer experience. Stack varies by project — TypeScript and React for the web, Python for terminal apps, Bun and PostgreSQL for the heavier SaaS, GTK4 for native Linux desktop, Docker for infra.
Lots of ideas, not yet all the skills to bring them to life… but I’m getting there. Feedback and contributions welcome on GitHub.
TypeScriptReactVue / NuxtSveltePythonBunPostgreSQLDockerGTK4Tailwind
Frequently asked questions
What is InstaZDLL?
InstaZDLL is an independent software developer building performant open source tools and SaaS products across web, desktop, terminal and infrastructure.
Which InstaZDLL projects are in production?
WaveFlow (self-hosted music streaming) and TPI Flow are live products, each on its own domain. Other tools such as Passphrase and Helvetseo are also publicly available.
What is WaveFlow?
WaveFlow is a self-hosted music streaming platform: a React + TanStack Start web client (waveflow-web) backed by a Rust/axum and PostgreSQL server (waveflow-server) for multi-device sync.
Is InstaZDLL software open source and free?
Most InstaZDLL projects are open source and free to use, published on GitHub at github.com/InstaZDLL. Some SaaS products also offer a free tier.
What technologies does InstaZDLL use?
Primarily TypeScript, React, Rust, Python and Node/Bun, with Express, WebSocket, Prisma and PostgreSQL on the backend and Docker-based self-hosting.