jafner.com


Toolbox

These are things that I find useful for my personal and professional use. I like learning about new ones, so please share your recommendations!

Digital Items

Python

Learn it, use it... you don't have to become a "programmer" to appreciate the powerful, free tool.

My quickstart guide is a work in progress, but it's a start!

AI Tools I've Built

These are tools I've built using AI - I guided through prompts, but did not directly create the content or formatting

Important Note: These tools are not verified for accuracy - I have given cursory review, but they may contain errors generated by the AI. Use as general guidance, and if something is not testable (e.g. running a SQL query) and is important... double check it.

  • SQL Trainer - interactive tool to learn basics of SQL
  • Git Basics - a lightweight guide to Git, mainly as a refresher and mental model builder
  • OpenBSD Admin - I kept running into issues with my openbsd setup, so made this tool to learn more
  • Docker Basics - an introduction to Docker and containerization... something I want to understand, but hasn't clicked for me yet
  • Turbocharger Engineering - a tool walking through the basics of turbo design
  • SysML V2 Trainer - a tool to introduce MBSE and walk through basics of implementing Systems Modeling Language V2
  • Electronics Basics - I am always rusty on electronics, so trying to fit with my mental models in this platform
  • Guitar Practice - a tool to help me get backinto trying to learn guitar, and specifically to finally tackle strumming
  • Voice Learning - this is meant to help practice doing voices for telling and reading stories to kids
  • Inkscape Learning - introduction and reference to the vector graphics software Inkscape, which I have been learning to use to make laser cutting/engraving designs

Physical Items

Tools & Gadgets

  • Acmer S1 Laser Engraver - I've been having a lot of fun with this, mainly for engraving and cutting wood for projects
    • I also have their honeycomb bed, which is great for the material and whatever surface you have behind it
    • This does benefit from using some software:
      • Inkscape - free vector graphics software, great for designing things to cut/engrave
      • Lightburn - popular software to control the laser engraver itself... I'm currently using the free Acmer software, but may upgrade
      • LaserGRBL - another free alternative for controlling laser engravers
      • Boxes.py - an online tool for generating laser-cut boxes parametrically
  • Soundcore A40 Earbuds - reasonably priced earbuds with decent sound and active noise cancelling

Non-tangible Items

Frameworks

  • Eisenhower Matrix
  • Automated Spending
  • Building Systems
  • Mental Models
  • OODA Loop