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My Devblog

Progress updates and behind-the-scenes posts, in order.

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Latest Post

August 12, 2026
Finding the Zstd Bug in Roblox's Binary Format

Building the RBXL Stats tool (upload a .rbxl/.rbxm, get an instant object count without opening Studio) went smoothly right up until I tested it on a real place file instead of a small model export. It failed with a cryp...

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August 12, 2026
Finding the Zstd Bug in Roblox's Binary Format

Building the RBXL Stats tool (upload a .rbxl/.rbxm, get an instant object count without opening Studio) went smoothly right up until I tested it on a real place file instead of a small model export. It failed with a cryp...

August 10, 2026
Pulling Live Data from Roblox, DevForum, and YouTube

A portfolio site full of "Coming Soon" placeholders isn't much of a portfolio. Once the page layouts were in place, the next step was replacing every placeholder with data pulled live from somewhere real: Roblox, the Dev...

August 1, 2026
Building a Live .rbxm Viewer

Parsing Roblox's .rbxm binary format turned out to be a much bigger project than expected. Roblox has shipped several different mesh formats over the years, and none of them are officially documented in one place. A .rbx...

July 15, 2026
Launching UnofficialRobloxTutor.com

This site started as a way to put my Roblox development work, tutoring, and tools all in one place instead of scattered across DevForum posts and Discord messages. - A portfolio of scripts, models, and builds - Live tool...

Unofficial Roblox Tutor

by Joseph San Nicolas, Roblox Developer

10+ years of Roblox development experience. Scripting, Modeling, Building, and more.

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