"The decision matters more here than in most projects, because the surface I am writing isn't a CRUD app. It's a security boundary. The wrong language choice doesn't slow you down - it lets a class of bugs into the audit log that you can't grep out later."
"If you're building a security control plane in 2026, or evaluating a Scala stack against a Rust or Go one for a similar reason, this is what we'd want you to read first."
The decision to build Aegis-KMS, an agent-aware control plane, involved selecting a programming language that ensures security and reliability. The shortlist included Rust, Go, Kotlin, and Scala 3. The choice of Scala 3, along with Pekko, Cats Effect 3, and Tapir, was made based on the specific requirements of the project. Aegis functions as an audited decision engine with a layered pipeline, emphasizing the importance of language choice in preventing bugs and ensuring a secure audit log.
Read at Medium
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