The latest articles on DEV Community by tahSin (@tahsinzidane). https://dev.to/tahsinzidane https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F2858850%2F2bd4c4c2-3151-4a34-bb5d-4bfa4f0944a6.jpeg https://dev.to/tahsinzidane en tahSin Sat, 11 Apr 2026 05:10:59 +0000 https://dev.to/tahsinzidane/lumina-a-minimalist-python-shell-wrapper-with-ghost-text-suggestions-346h https://dev.to/tahsinzidane/lumina-a-minimalist-python-shell-wrapper-with-ghost-text-suggestions-346h <p>I built a simple tool called <strong>Lumina</strong> to solve a personal annoyance: I wanted Fish-style command suggestions in my terminal without switching my entire shell environment or dealing with heavy configurations.</p> <h3> What it does </h3> <p>Lumina acts as a wrapper for your existing shell. It records your command history into a local JSON file and provides <strong>inline ghost text suggestions</strong> based on that history as you type.</p> <h3> Key Features </h3> <ul> <li> <strong>History-based Autocomplete:</strong> Suggestions are pulled directly from your persistent JSON storage.</li> <li> <strong>Built-in Validation:</strong> If you try to run a command that doesn't exist, it lets you know (with a bit of personality).</li> <li> <strong>Lightweight:</strong> Built with Python and <code>prompt_toolkit</code>.</li> <li> <strong>Portable:</strong> Easy to install and runs on top of your current system shell.</li> </ul> <p>I originally built this just for my own workflow, but I’ve open-sourced it in case anyone else finds it useful or wants to build upon it.</p> <p><strong>Check out the repo here:</strong> <a href="https://github.com/tahsinzidane/lumina" rel="noopener noreferrer">https://github.com/tahsinzidane/lumina</a><br> <a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Favoo7mezy1kato8a1yon.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Favoo7mezy1kato8a1yon.png" alt=" " width="480" height="270"></a><br> <strong>Invalid command = Instant Aura loss</strong><br> <a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F4lgaj3cf94yry61d40w1.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F4lgaj3cf94yry61d40w1.png" alt=" " width="480" height="270"></a></p> cli python showdev tooling