I'm Larry (Danna) Collins Jr.

Software developer (C#, SQL, .NET). Live bluegrass musician. Vintage computer collector. I build things that are useful, play things that are loud, and collect things that are old.

See my tools About me

Featured tool

Game Vanilla JS

JeopardyJs

A fully playable Jeopardy game in the browser. Custom game files, multiple themes, Final Jeopardy. Built entirely in vanilla JavaScript.

Play it

Tools

Interactive web demos I use myself. SQL helpers, regex testers, games, and more.

Tips

Pro tips in C#, SQL, JavaScript, and 6502 assembly. Stack Overflow-style, searchable by tag.

Vintage

My Commodore 64 and vintage computer collection. Hardware history, personal notes, growing 6502 projects.

Music

Live bluegrass with friends. AI-assisted songwriting with Suno. Videos and tracks.