Reproducible
engineering
experiments

Firebase by Google offers a powerful set of tools to help you build, grow, and scale Android … Read more

Learn what Nginx is and how to install it on Ubuntu 22.04/24.04: master systemctl service commands, UFW firewall rules, and virtual host server blocks.

Build a raw PEP 3333 Python WSGI web application from scratch and deploy it with uWSGI and Nginx: sockets, emperor mode, and systemd setup.

Configure SELinux permissive mode in Android AOSP builds: master BoardConfig.mk BOARD_KERNEL_CMDLINE flags, bootimg options, and audit2allow policy fixes.

Recover your Linux system from the grub rescue prompt: locate root partitions (ls, set root, prefix), load normal module, insmod, and update-grub.

Generate Git diffs across multi-repository AOSP trees using repo forall: master command syntax, tag comparisons, project variables, and patch generation.

Decode /proc/meminfo metrics in Linux: understand MemAvailable vs MemFree, Active/Inactive anonymous memory, Buffers/Cached, Dirty pages, and Swap.

Configure Firebase Crashlytics for Android: install Gradle plugins, log custom keys, capture non-fatal exceptions, and upload de-obfuscation mapping files.

EC2 public IPs change on stop/restart, which breaks anything pointing at them. The fix is mapping a custom domain via an Elastic IP.