About
Jeongmin Lee is a software developer based in South Korea and the founder of Lunive. He is currently an undergraduate student. Lunive runs as a one-person software studio: design, engineering, and operations are all handled by the same person, which is how its decisions stay coherent across products.
Online, he goes by @sidcatkr. That handle is the same person across GitHub, LinkedIn, email, and every other official channel linked from this site.
Background
He first picked up programming in 2018. Serious development started in middle and high school, with school projects in high school being where the work really took shape — building things that other students would actually use, not toy assignments.
Lunive is the first company he runs. Before Lunive, his experience was mostly school-based projects rather than professional roles or notable open-source contributions. He is intentionally upfront about that — it's the honest starting point of the brand, not something to hide.
Why Lunive
Lunive started in his senior year of high school, right after his university admission was confirmed. Instead of going looking for a job, he wanted to ship something under his own name and be accountable for it end-to-end. The lunive.app domain was registered on May 7, 2025 — that's when the brand began. Company-status came later, in March 2026, when the first product (the Discord bot Cadenza) launched.
Tech
The tools he reaches for today are TypeScript, Next.js, Python, C, C++, and Unity. Before adding anything new to that list, he asks whether the product actually needs it.
Currently building
Lunive's first product is Cadenza, a Discord music bot with a real, polished web dashboard. One slash command starts a session and from then on you have a private URL where queue, search, lyrics, and playback are all visible at once. It is currently in beta.
The next product on the bench is a Chromium-based browser. No release timeline has been announced yet.