Mthe lab
— the lab

Projects I'm building:

2025 — presentprivate

Nexus — an AI Discord bot

A small, opinionated Discord bot built around long-running LLM threads, soft moderation, and a quiet personality.

TypeScriptdiscord.jsOpenAI APISQLiteCloudflare Workers
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2025 — presentlive

rhyolite-MELTS Tracker

A single-file HTML app for tracking thermodynamic simulation runs across dozens of samples — and finally seeing the patterns I'd been missing in spreadsheets.

HTMLVanilla JSJSON storagerhyolite-MELTS
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2026live

marvinlopezacevedo.com — design showcase

A three-app monorepo built around a single 200-line stylesheet of design tokens, a paper palette, and a quiet refusal to use stock components.

Next.js 16React 19TypeScriptnpm workspacesvanilla CSS
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2026in progress

Petro Graphs

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2026in progress

Jellybean Soundz

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