Yuna Kim
Co-founder and lead editor. Former technical translator who localized developer docs for Korean startups. Writes most glossary entries and leads beginner sessions on Wednesdays and Saturdays.
A reading room for Solana beginners
CoreStream Base started when a small group of translators and educators in Gangdong-gu noticed that English-language Solana documentation assumed readers already owned a wallet.
Official business information
Registered business name: CoreStream Base
Established: 2022
Location: 412-8,Seongnae-dong,Gangdong-gu,Seoul, South Korea
How we began
In late 2021, co-founder Yuna Kim spent weeks helping friends in Seoul set up their first Solana wallets over video calls. The same questions appeared each time: where to store the seed phrase, whether devnet coins were real, and how to read an address on a block explorer. By early 2022, she and editor Min-jun Oh leased a ground-floor space near Seongnae Station and stocked it with printed glossary drafts, labeled backup cards, and a projector for small onboarding sessions.
What began as informal meetups became a registered learning library — not an exchange, not a wallet provider — but a place to read, ask questions, and practice transfers on devnet before touching mainnet.
What we do today
We maintain a public glossary, publish long-form guides on our website, and run scheduled wallet setup sessions for individuals and groups of up to four. Our editors track changes to Solana wallet apps and revise articles when interface labels shift. We do not custody funds, issue tokens, or provide investment advice.
Working approach
- Plain English first — Korean summaries available on request for session participants
- Hands-on practice on devnet before any discussion of mainnet transfers
- Paper backup cards provided; we never ask to photograph or store your seed phrase
- Sources cited at the bottom of every article, linked to Solana Foundation documentation where applicable
People
Who you'll learn with
Min-jun Oh
Co-founder and session facilitator. Background in adult education and community college tutoring. Designed the ninety-minute wallet setup curriculum and the paper backup card layout we still use.
Soo-jin Lee
Glossary researcher and fact-checker. Verifies terminology against current Solana documentation quarterly and flags outdated screenshots in published guides.