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ADR 0009: MVP requires a KVM-capable host; container fallback is a later Engine implementation

  • Status: Accepted
  • Date: 2026-11-02
  • Ledger id: D-0009
  • Tags: engine, product
  • Supersedes: none
  • Superseded by: none
  • Related: none

Context

Many VPS do not expose nested virtualization; a container fallback (e.g. youki, Rust OCI runtime) is more work and weaker isolation.

Decision

MVP requires a KVM-capable host; container fallback is a later Engine implementation.

Supported in MVP: bare metal or VPS with nested virt. Fallback mode deferred.

Consequences

  • This decision is binding for all contributors and agents. Changing it requires a new ADR approved by the maintainer (see ADR 0036).

Generated from decision D-0009 in the project decision ledger. Do not edit by hand; changes go through a new decision.