Prolab LIS Cloud: A Reference Architecture for Enterprise Laboratory Platforms

by
Modern laboratories are no longer isolated data silos. They are distributed, high-throughput, compliance-driven systems that must scale, integrate, and remain available without compromise. Prolab LIS Cloud was designed precisely for this reality. Developed by BlackFlow, the Enterprise Software Development division of Yoctobe Ltd, Prolab LIS Cloud is not just a Laboratory Information System. It is … Read more

TikTok’s Custom Mobile App Development: How Algorithm Meets Mobile Experience to Create a Global Phenomenon

by
The £180 Billion Social Media Revolution TikTok didn’t just enter the social media market—it completely rewrote the rules. With over 1 billion active users and a valuation exceeding £180 billion, TikTok represents one of the most successful custom mobile app development projects in history. But what makes TikTok’s success particularly remarkable is how it combined … Read more

Google Cloud’s 20-Minute Nightmare: Why Web Application Development Infrastructure Matters

by
When the Cloud Fails: A Web Application Development Wake-Up Call In 2016, Google Cloud experienced what should have been a routine network update. Instead, it became a 20-minute nightmare that affected clients like BrightCove and DataStax, demonstrating how fragile web application development infrastructure can be when automation fails. This incident reveals critical insights about web … Read more

Custom Software Development Services in Liverpool UK – Launching Our New Division BlackFlow

by
I am thrilled to announce the launch of our new custom software development services division in Liverpool, UK. After years of building expertise and delivering exceptional software solutions, we’re excited to bring our comprehensive development capabilities to the vibrant tech community of Liverpool and beyond. Why Liverpool? Why Now? Liverpool has emerged as one of the UK’s … Read more

High-Performance Batch Processing in .NET core: From 10 to 350 Records Processing/Second

by
When building enterprise applications that process thousands or millions of records, the difference between naive one-by-one processing and optimized batch operations can mean the difference between minutes and hours of processing time. This article explores how we achieved a 350x performance improvement (from ~1 record/second to 350 records/second) using strategic design patterns and .NET Core optimizations. The Challenge: N+1 Query Problem at Scale Most applications start with simple CRUD operations that work perfectly for small datasets. However, when processing large batches of records, … Read more

Expanding VM Disk Space After Proxmox Resize

by
The Problem You expanded a virtual disk in Proxmox, but the guest VM still shows the old disk size and may be running out of space. The VM can’t see or use the additional disk space until you expand the partitions and filesystems inside the guest OS. Symptoms Solution Steps 1. Check Current Disk Layout … Read more

Fix “fatal: unable to access: server certificate verification failed” in Git

by
If you see this error when cloning from a private Git server: It means your system doesn’t trust the server’s SSL certificate. Here’s how to fix it properly by trusting the certificate manually. Step 1: Export the Certificate Use openssl to extract the server certificate: Step 2: Trust the Certificate On Ubuntu/Debian On RHEL/CentOS On … Read more

Deploying a Hello World Web App on K3s Cluster on Proxmox

by
This guide walks through deploying a simple nginx-based hello world application on a K3s cluster, using Traefik ingress for external access on standard HTTP port 80. Prerequisites Step 1: Create the Application Deployment Create a file called nginx-hello-deployment.yaml: Step 2: Create Service and Ingress Create nginx-hello-ingress.yaml: Step 3: Deploy the Application Step 4: Verify Deployment … Read more