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PRODUCT & ENGINEERING GALLERY // EDGE-FIRST & SERVERLESS

High-Speed Software, Developer Tools & Security Without Cloud Bloat

From production-proven accounting to zero-knowledge browser security and offline-first tournament engines: real software products and developer tools engineered for resilience, 0ms cold start latency, and strict European data privacy.

0ms Cold Start Latency 100% GDPR & Database-per-Tenant No Monthly Subscription Trap
Live SaaS Austrian Tax Compliance (E1a & BMD)

Accounting & E1a. Zero Legal Jargon.

From receipt photo to verified tax return – slashing Austrian sole proprietors' CPA bills by up to 70%.

1-Click E1a Tax Return

Copy official tax codes (9040–9299) directly into your tax return in 1 click.

BMD CPA Batch Export

Complete booking batches & linked receipt ZIPs – your accountant imports in seconds.

100% Austrian Tax Compliance

Engineered for sole proprietors, low-value assets 9140, social insurance 9220 & D1 DB per tenant.

libris.r-cf.net/e1a-report
E1a Ready
LIBRIS E1a Annual Tax Report & Kennzahlen Dashboard
Record New Expense
Auto-Detection
Receipt & Amount
Invoice_Lenovo_ThinkPad.pdf
-€ 849.00
Tax Category / E1a Code
Code 9140 Low-Value Assets (GWG)
100% immediate write-off (≤ €1,000 net)
BMD batch ready Post E1a ✓
// ENGINEERING SHOWCASES

Edge-First Software & Specialized Tools

Standardized architecture, uncompromising performance, and bespoke solutions for mission-critical use cases.

Event-Tech / Offline-First PWA Live App

Tournament management that never goes offline.

100% resilient sports tournament operations in zero-Wi-Fi venues via in-browser SQLite and Cloudflare EchoEngine WebSocket sync.

vrsus.r-cf.net/live
< 20ms Sync
Table 1 • Final Set 3 (Match Point)
TTV Linz (Reikersdorfer / M.)
11 | 9 11
Union Wien (Schmidt / K.)
8 | 11 9
Local SQLite cache: 124 matches synced 100% Offline-Ready
PWA In-Browser SQLite Durable Objects EchoEngine
Dev-Tools / Architecture Production-Ready

The 0ms Cold Start Full-Stack Boilerplate.

Turnkey Cloudflare Pages & D1 stack with GitHub Actions CI/CD – push-to-deploy in 45 seconds without monthly subscription traps.

$ deploy-cf-edge.sh
branch: main
Lighthouse 100/100 Audit: Perf 100 • SEO 100 • A11y 100
Cloudflare D1 SQLite: Schema migrated (0ms downtime)
🚀 Live on 330+ edge PoPs globally in 42.8s
Cold start: 0.0 ms Bundle size: 18.4 KB
Cloudflare Pages Workers D1 SQLite GitHub Actions
Inquire Fixed Price License
CodeCanyon Release Coming Soon
Security & Compliance Early Access

Zero-Knowledge DLP in the Browser.

Intercepts accidentally pasted API keys, IBANs, and passwords before submission to AI prompts – 100% client-side with zero data egress.

Client-Side Shield Active
0 Bytes Egress
🚨 DATA LEAK INTERCEPTED
Pattern detected: OpenAI API Key (sk-proj-...)
Entropy: 4.82 bits • AI prompt submission intercepted
Sandbox Latency: < 2 ms 100% Client-Side
Web Crypto API Regex Sandbox Shannon Entropy Zero-Knowledge
Request Early Access
Pilot Seats for Devs & Security Leaders
// CISO ARCHITECTURE

Technological Excellence Without Bloat

Every line of code is engineered with minimal attack surface and maximum efficiency in mind.

CF

Cloudflare Workers & Pages

Serverless Edge Computing with global replication across 330+ locations worldwide. Under 10ms latency with zero server maintenance.

D1

Cloudflare D1 (SQLite)

True relational SQL databases right at the edge. Transaction-safe, lightning-fast, and without expensive database clusters.

JS

Vanilla JS & Zero Bloat

No 500 KB React/Angular framework overhead. Pure native JavaScript ensures 0ms script evaluation on mobile devices.

SEC

CISO Security by Design

Hardened against OWASP Top 10, strict Content Security Policy without external trackers, and GDPR compliance at the architectural level.

Need a custom tool or specialized edge architecture?

Whether you need a custom developer tool, an offline-first web app, or an automated CI/CD pipeline: share your project requirements for an honest feasibility assessment and a binding fixed-price quote.