Developer Tools
Why use a Python virtual environment on your first day?
A virtual environment keeps one project's Python packages away from every other project. Learn the first-day steps and the security reasons behind them.
Oct 19, 20263 min read
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Why does sharp install platform binaries as optional dependencies?
Image tools like sharp ship prebuilt binaries per platform as optional packages. Omit optional dependencies and the build breaks, so scanners must read them.
Oct 19, 20264 min read
Developer Tools
Why does a scoped npm package need the public access option?
Scoped npm packages publish as private by default, so a first public release needs the public access option. Steps, a user scope example and safety tips.
Oct 19, 20263 min read
Developer Tools
Why does python setup.py install undermine pip hash checking?
Calling setup.py install or develop can download unchecked dependencies and bypass your hashes. Use pip with no-deps instead. Here is the reasoning.
Oct 19, 20264 min read
Developer Tools
Why is process.env typed string or undefined, and what to do?
process.env values are strings and may be missing. How TypeScript types them, the 'undefined' string trap, and a safe way to read config in Node.
Oct 19, 20263 min read
Developer Tools
Why does pip show a hash mismatch after you change install options?
A requirements file that worked can fail when you add a binary or source option, because the other archive has a different hash. Here is how to fix it.
Oct 19, 20264 min read
Developer Tools
Why OS patching and dependency patching need different tools
OS patching works on hosts and repositories. Dependency patching works on manifests, lockfiles and builds. Compare the two and pick tooling for each.
Oct 19, 20263 min read
Developer Tools
Why did my vulnerability alert not get a fix pull request?
An alert with no automatic fix PR usually means no patched version exists or the fix needs a parent upgrade. Here is how to tell which and what to do next.
Oct 19, 20264 min read
Developer Tools
Why should native apps use the system browser for OAuth sign in?
RFC 8252 says native apps should only use external user agents for OAuth. Embedded web views let the app read passwords and cookies. Here is the reasoning.
Oct 19, 20264 min read
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