Umair Alam

Excel Data Security: Lock Cells, Protect Sheets & Workbook Structure (Complete Guide)

by

Ensure data integrity and protect your Excel files with this complete guide to workbook security. Learn three effective levels of protection, from locking entire worksheets and defining editable cell ranges to color-based formatting protection. Plus, discover how to restrict structural changes like adding or deleting sheets to keep your reports and templates safe.

SQLite + Litestream: How to Host 1 Million Users for ~$0.50/Month (Kill Your Cloud Database Bill)

by

Eliminate expensive cloud database bills by using SQLite and Litestream. This powerful combination provides real-time replication to object storage and microsecond latency on standard VPS hardware. Perfect for startups and indie developers, this architecture handles thousands of concurrent readers and offers point-in-time recovery for a fraction of the cost of managed PostgreSQL or MySQL.

DeepSeek’s Breakthrough: How to Double GPU Utilization from 40% to 80% Without New Hardware

by

High-end GPUs often sit 60% idle during AI inference, wasting significant compute power. DeepSeek’s breakthrough addresses this by disaggregating prefill and decode phases using priority-aware network scheduling. This open-source strategy doubles GPU utilization to 80% and halves costs, providing a massive leap in efficiency and ROI for the AI ecosystem without requiring any new hardware.

How to Use OmniRoute with Hermes Agent Locally

by

Tired of hitting rate limits and paying for expensive AI tokens? OmniRoute is a local AI gateway that aggregates hundreds of free providers to provide unlimited access to models like DeepSeek and Groq. This tutorial explains how to set up OmniRoute with Hermes Agent for a seamless, cost-free, and private AI coding experience without fees.

How to Run QWEN 3.6 27B on a Laptop with Only 6GB VRAM (Prism ML + Llama.cpp)

by

Discover how to run a 27B parameter AI model on consumer hardware with just 6GB of VRAM. This tutorial explores ternary quantization and layer offloading using Prism ML and llama.cpp. Learn to optimize context windows and hardware settings to achieve functional local performance, providing a private, cost-free alternative to cloud-based AI services on standard equipment.

How to Hide Multiple Blank Rows in Excel Simultaneously (Fast Method)

by

Stop wasting time manually hiding blank rows in Excel. This tutorial teaches you how to use the Go To Special feature and the Ctrl+9 keyboard shortcut to hide multiple blank rows simultaneously. Whether you are on Windows or Mac, this fast, reversible method is perfect for cleaning up large datasets and preparing professional reports in seconds.