Blog

From SaaS to self-hosted to open-source, I've tried every deployment model. SaaS is hassle-free but you don't own the data, self-hosted offers freedom but demands heavy maintenance, open-source is free but full of hidden traps. Today, I share my painful lessons to help you find the right path.

Last year, a temp worker accidentally deleted an entire inbound record in my warehouse, nearly costing the company hundreds of thousands. Today I share how to apply the principle of least privilege to supply chain role permissions, so you don't make the same mistakes.

Last summer, I stared at Excel sheets in my warehouse, unable to reconcile thousands of SKUs, with customers calling nonstop. Later, I designed Flash WMS's tech architecture myself—from monolith to microservices, from SQLite to PostgreSQL. I've stepped in every pit. Today, I share the stories behind the code, hoping to save you some detours.

Last year, I spent $30K on a WMS system, only to find workers couldn't use it, inventory got messier, and I nearly lost clients. Today, I share why SME digital transformations fail—it's not about the tech, it's about getting the direction wrong from the start.

At 2 AM, our WMS system froze—all scanners dead. Staring at DB logs full of deadlocks, I learned the hard way that inventory management is about engineering resilience, not just code.

Last year, a US customer almost returned our system because he couldn't read Chinese inventory reports. I stayed up all night adding English menus to FlashCang. Today I share how we built multi-language support — not just translation, but making the system truly speak the user's language.