I ran git submodule update --remote --merge and nothing happened. My Hugo theme was stuck at an old version. Turns out I had accidentally replaced the submodule with manually copied files without realizing it. Here’s how I diagnosed the git state mismatch, restored the proper submodule, and fixed the Cloudflare Pages deployment failure that followed.
I accidentally shipped 3MB of unused screenshots to production through my Hugo blog. Deleting them wasn’t enough. They lived forever in git history. Here’s how I investigated, cleaned up, and verified the purge using git filter-repo.
Virt-Manager’s UI for duplicating virtual disks can be confusing. This bite-sized guide shows you exactly how to use Storage Pools and Backing Stores to create space-saving linked clones without ever touching the terminal.
Run the official Amazon Linux 2023 QCOW2 image locally on QEMU/KVM with Virt-Manager. Covers Cloud-Init seed ISO creation, SSH key setup, and an 8-test deep dive into the password locking behavior that most guides get wrong. The Cloud-Init concepts apply to VirtualBox, VMware, and Hyper-V too.
My Linux desktop dropped to tty1 with no GUI. LightDM was failing, but the real culprit was a 100% full root disk. Here’s exactly how I diagnosed it from the terminal and brought the system back — step by step.
A step-by-step guide to building a custom Coral source spec that turns any internal REST API into a queryable SQL table — no SDK, no glue code, just one YAML file.
How I built a DevOps Incident Investigator that correlates GitHub PRs, Sentry errors, and Slack messages using Coral SQL — reducing incident triage from 15 minutes of tab-switching to 15 seconds with one command.
How I built khadirullah.com with Hugo and the Blowfish theme, configured it, and deployed it to Cloudflare Pages for free — with automated Git-push deployments.
How I set up professional email on my custom domain using Zoho Mail and Cloudflare DNS — complete with SPF, DKIM, DMARC authentication, alias routing, and folder-based filtering.
Block outbound internet for specific Linux apps using UFW while keeping LAN access. Five approaches from quick wrapper scripts to production-hardened setups — plus the security flaw nobody talks about.
