A Java Fintech Interview Workbook
I missed a fintech offer despite years of experience because I was underprepared for the exact Java exercise format used in that interview. It changed how I view interview fairness: many rounds optimize for who can solve a specific task, in a specific format, under pressure. That can let a less experienced but better-prepared candidate outperform a stronger but less format-ready one. Some interviewers use broader, experience-led evaluation; others use strict syntax execution. This workbook is for the latter case, so you can train for precision, speed, and direct implementation when it matters.
Boot From SD Live on SSD
SD cards are the default storage medium for Raspberry Pi but their low IOPS, limited write endurance, and susceptibility to corruption make them a poor foundation for anything beyond casual use. This post walks through migrating a live Alpine Linux installation to an external SSD without reinstalling the OS. The approach keeps the SD card as a thin bootloader host and pivots the root filesystem to the SSD using UUID-pinned fstab and cmdline.txt configuration.
Alpine Linux Installation on Raspberry Pi
This guide walks through installing Alpine Linux on a Raspberry Pi 4, from image flashing through to a secure, containerized system ready for workloads. It covers a practical five-stage installation workflow, including ARM-specific bootloader and filesystem configuration required for reliable boots. The result is a minimal base system with Docker, SSH hardening, firewall rules, and static networking configured.
Arch Linux Installation from Scratch
This guide provides a comprehensive walkthrough for installing Arch Linux from a live disk, configuring GRUB as the bootloader, and selecting the recommended filesystem. Beginning with booting from the live disk, users are guided through partitioning, mounting, and installing the base system. Configuration steps cover timezone, localization, network settings, and the installation of GRUB.