Blog
Ideas, engineering notes& practical technology.
Insights on embedded systems, Linux, cloud, IoT, software and everything we learn while building.
Linux & Servers
GUIDE
Install Docker & Docker Compose on Ubuntu for Production
A practical guide to installing Docker Engine and Docker Compose on an Ubuntu VPS, verifying the installation, and preparing a dedicated deployment user for production workloads.
GUIDE
Deploy a Private GitHub Repository to an Ubuntu VPS
Learn how to connect an Ubuntu VPS to a private GitHub repository using SSH deploy keys, clone the project into /opt, and prepare it for Docker Compose deployment.
GUIDE
New Ubuntu VPS? 10 Things You Should Do First
A practical first-day checklist for securing and preparing a fresh Ubuntu VPS before deploying applications.
Embedded & Firmware
SELECTION GUIDE
ESP32 Family Comparison 2026: Which ESP32 Should You Choose?
Choose by radio, workload and product constraints: a practical guide to ESP32-S3, C3, C5, C6, C61, H2, P4 and S31, with H4 and original ESP32 context.
COMPARISON
RAUC vs SWUpdate: Which OTA Framework Should You Choose for Embedded Linux?
Start with your partition layout and recovery requirements: compare RAUC’s slot-oriented model with SWUpdate’s handler-based installation workflow.
TROUBLESHOOTING
ESP32 Won’t Flash? Fix “Failed to Connect” and esptool Errors
Find the failing stage—USB detection, download mode, serial communication or transfer—and use targeted checks for development boards and custom ESP32 hardware.
All Recent Articles
ESP32 Family Comparison 2026: Which ESP32 Should You Choose?
RAUC vs SWUpdate: Which OTA Framework Should You Choose for Embedded Linux?
ESP32 Won’t Flash? Fix “Failed to Connect” and esptool Errors
ESP32 vs STM32 in 2026: Which Microcontroller Should You Choose?
Planning Reliable OTA Updates for Embedded Linux Devices
Working on something challenging?
Let us build reliable, scalable solutions together.