Programming Languages: Java | JavaScript | Perl | PHP | C++ | C | Swift | Python | HTML | CSS | XML | JSON | Visual Basic | Ruby | SQL | R | Markdown
Frontend: Bootstrap | jQuery | React | Angular | Room
Backend: Postman | Node.js | Express | JPA | Hibernate | Django
Databases: AWS S3 | MySQL | PostgreSQL | MongoDB | Firebase | CloudKit | Neo4j | SQLite
Visualization/Animation/Design: Maya | Photoshop | Flash | Tableau Design Frameworks: MVC | MVVM
Geolocation: Mapbox | Google Maps | ArcGIS
Project Management/Collaboration Tools: git | GitHub | GitLab | Slack | Discord | Zoom | Word | PowerPoint | Pages | Numbers | Excel | WordPerfect | OpenOffice | Google Docs | Google Forms | Google Slides | Google Sheets
Operating Systems: Linux | Windows | MacOS
Virtualization: Parallels | VMWare | Virtual Box
Miscellaneous: Heroku | MEAN | MERN | LAMP | MATLAB | Maple | Android Development | iOS Development | macros | apple script | WebEOC | vEOC
*This was the world's largest puzzle when I bought it around 2011. However, since that time, they have come out with a new World's Largest Puzzle. It is 51,300 pieces. Of course, I had to buy that one, but since I started this one and have been working on it for 10 years already, I figured that I would finish this one first. It will probably take me another 10 years to finish.