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 tools

Wallpaper Canvas Vanilla JS

Blotter

Generate a desktop or phone wallpaper from your active theme. Add a calendar overlay, pick a size, download the PNG.

Try it

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

Blotter: Wallpapers from Your Theme

A new tool that renders your active site theme as a desktop or phone wallpaper — with an optional calendar overlay baked right in.

2026-03-31 WebDesign

Sixteen Skies: A Seasonal Theme Picker

The site now ships with 16 themes—four seasons, four each—auto-selected by month and week of year. A small poem explains why discipline is overrated.

2026-03-30 AstroWeb

Building This Site

larrydanna.com has been offline for years. Here's what I used to bring it back and why.

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.