#448 I'm Getting the BIOS Flavor

Topics covered in this episode:

• * prek*
• * tinyio*
• * The power of Python’s print function*
• * Vibe Coding Fiasco: AI Agent Goes Rogue, Deletes Company's Entire Database*
• Extras
• Joke

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About the show

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• Michael: @[e-mail] / @mkennedy.codes (bsky)
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Brian #1: prek

• Suggested by Owen Lamont
• “prek is a reimagined version of pre-commit, built in Rust. It is designed to be a faster, dependency-free and drop-in alternative for it, while also providing some additional long-requested features.”
• Some cool new features
  • No need to install Python or any other runtime, just download a single binary.
  • No hassle with your Python version or virtual environments, prek automatically installs the required Python version and creates a virtual environment for you.
  • Built-in support for workspaces (or monorepos), each subproject can have its own .pre-commit-config.yaml file.
  • prek run has some nifty improvements over pre-commit run, such as:
    • prek run --directory DIR runs hooks for files in the specified directory, no need to use git ls-files -- DIR | xargs pre-commit run --files anymore.
    • prek run --last-commit runs hooks for files changed in the last commit.
    • prek run [HOOK] [HOOK] selects and runs multiple hooks.
  • prek list command lists all available hooks, their ids, and descriptions, providing a better overview of the configured hooks.
  • prek provides shell completions for prek run HOOK_ID command, making it easier to run specific hooks without remembering their ids.
• Faster:
  • Setup from cold cache is significantly faster.
    • Viet Schiele provided a nice cache clearing command line
  • Warm cache run is also faster, but less significant.
    • pytest repo tested on my mac mini - prek 3.6 seconds, pre-commit 4.4 seconds

Michael #2: tinyio

• Ever used asyncio and wished you hadn't? A tiny (~300 lines) event loop for Python.
• tinyio is a dead-simple event loop for Python, born out of my frustration with trying to get robust error handling with asyncio. (I'm not the only one running into its sharp corn