jq and yq: transforming embedded key-value strings in YAML
jq and yq combine to turn a YAML file's embedded key=value strings into properly structured, typed fields, using a single scan and from_entries pipeline.
Writing
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Ruby object IDs, anonymous modules, and Rails cache errors
A Rails.cache TypeError on an anonymous module led into Ruby's Marshal restrictions and the relationship between object_id and C-level memory addresses.
Kubectl aliases and functions that actually save time
A set of kubectl aliases and shell functions for pod access, JSONPath queries, and log searching that cut real typing out of day-to-day Kubernetes work.
Docker secrets: how layers leak them and how BuildKit fixes it
Docker's layer history persists secrets baked into ARG and ENV instructions, and BuildKit secret mounts are the practical fix that keeps them out of the image.
Three-way merge in Neovim with Fugitive and Delta
Setting up Neovim, Fugitive, and Delta for three-way merges gives you a fast, keyboard-driven way to resolve Git conflicts without leaving the terminal.
Docker Buildx --on-error: drop into a shell when a build fails
The --on-error flag in Docker Buildx drops you into a shell inside the failing build step so you can inspect state instead of guessing from logs.
How to Debug Docker Image Builds
Practical techniques for debugging Docker image builds: BuildKit output flags, inspecting intermediate layers, nsenter tricks, and multi-stage build targets.
Migrating from Kaminari to will_paginate in Rails
A step-by-step guide to migrating a Rails app's pagination from Kaminari to will_paginate, covering models, controllers, views, and API responses.
Leapp vs aws-vault: Comparing AWS CLI Credential Tools
A practical comparison of Leapp and aws-vault for managing AWS CLI credentials, covering SSO and IAM setup, session tokens, and when each tool fits better.
List of tools
A saved reference link to fmwconcepts.com's ImageMagick script for removing watermarks from images, kept here as a personal bookmark.