Observed arrival · 2026-11-14
Koral: Kotlin, compiled toward Solana
An experimental compiler turns a supported Kotlin subset into inspectable C and native Solana SBF programs.
○Open
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Kotlin developers targeting native Solana programs
- Worth noticing
- Koral reports 107 compute units for a Counter increment versus Pinocchio’s 113, while noting its initialization currently trails Pinocchio.
Field notes
The current preview covers Counter and limited owned ULong state; running it requires a development checkout, JDK 17, Node 22.12+, and an installed Agave SBF SDK. Its comparison uses one initialization and 20 increments under Agave 3.1.10 / platform-tools 1.52, with identical inputs, addresses, and final 49-byte state; the page cautions that these Counter measurements do not establish DEX performance and separates compute units from account-storage deposits.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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