Misc
Stuff that doesn’t fit elsewhere — HTTP, DNS, tooling, workflows, and assorted rabbit holes.
Avoid here-doc pitfalls when running remote commands via SSH. Learn variable expansion gotchas and simpler alternatives for deployment scripts.
Make pull requests easier to review. Learn commit organization, diff filtering, annotations, and context that helps reviewers understand changes faster.
Master git rebase for cleaner commit history. Learn interactive rebasing, squashing commits, and rebasing feature branches onto main with practical examples.
Define service contracts with Protocol Buffers for non-gRPC systems. Generate serializers, maintain self-documented APIs, and ensure cross-language compatibility.
Implement client-side HTTP caching with ETag headers. Learn If-None-Match, 304 Not Modified responses, and weak validation in Go servers.
Troubleshoot CORS errors with this practical guide. Learn Access-Control-Allow-Origin headers, preflight requests, and domain allowlisting in Go.
Why you should define API response structures explicitly. Compare approaches in Python, JavaScript, and Go with Pydantic, Zod, and structs.
Organize custom scripts with comma-prefixed naming. Improve tab completion and eliminate clutter by prefixing script names with special characters.
Manage dotfiles across devices with GNU Stow. Symlink configuration files from git repo to home directory with simple, idempotent commands.
Host Google Fonts locally in Hugo without CDN dependency. Download woff2 files, configure CSS, and improve performance while maintaining GDPR compliance.
Share data via DNS TXT records using dig and base64 encoding. Learn limitations, security concerns, and practical use cases for DNS tunneling.
Schedule one-time commands with UNIX at command. Learn job queuing, remote scheduling via HTTP API, and managing atd/atrun daemons.
Learn how to use associative arrays in Bash to create key-value pairs, mimic dictionaries, and manage complex data structures in shell scripts.
Use process substitution <() to treat command output as files in Bash. Compare directories, process data, and avoid temporary files with this technique.
Build interactive CLI menus with Bash select statement. Create user-friendly command-line tools with option selection and function dispatch.