Part 1 of our OnTheGoRentals dev diary. We break down the modular monolithic architecture, the domain model with immutable entities, and why we chose Builder patterns over mutable state.
OnTheGoRentals is a production-ready rental SaaS platform built with Spring Boot and Vue 3. It’s live, fully functional, and designed to be adapted for any rental domain — cars, bicycles, houses, equipment. This 3-part series walks through the technical decisions behind the platform.
Building a smart-home TTS stack on hardware you already own — no GPU, no cloud API, no bill. We wanted text-to-speech for automation triggers that runs locally, on existing CPU hardware, without sending every doorbell announcement through a third-party API. So we built a FastAPI service around Kokoro ONNX with voice blending, dialogue scripting, and […]
Every prediction someone makes online deserves accountability. We built Since — a self-hosted temporal claim tracker — to register predictions, record past events, attach evidence, open disputes, and verify outcomes over time. The stack is deliberately lightweight: React 19, PocketBase, Express.js, and Docker. Here’s why we chose each piece, what surprised us, and what we’d […]
Comparing self-hosted AI to cloud APIs for South African businesses. Real cost analysis with 2026 pricing, infrastructure requirements, POPIA compliance, and when each approach makes sense.
Stop rebuilding authentication in every app. Learn how to build a shared identity layer that handles OAuth, federation, and user management once — so every application in your ecosystem can inherit it. Covers email normalization, token boundaries, and the critical difference between authentication and authorization.
Bringing GPU Support to NeuTTS-Air — A Dev Diary This is the long one: the full post‑mortem, the war stories, the trade‑offs, the CLI commands, and the benchmarks. Read this if you want to know what actually happened when we added ONNX GPU support and a benchmarking suite to NeuTTS‑Air. TL;DR We added auto device […]
This long-form deep dive unpacks how ForkMyFolio’s backend turns a simple personal portfolio into a multi-user, slug-driven, production-ready platform built on Java 21 and Spring Boot 3. Updated: December 4, 2025 Tech Stack: Java 21, Spring Boot 3, Spring Security, JPA, Docker What You’ll Learn Layered Spring Boot Architecture How controllers, services, repositories, DTOs, and mappers fit […]
