Environment variables

Common override variables:

Variable	Use
OMNIFS_PROVIDERS_DIR	Override provider WASM directory.
OMNIFS_MOUNTS_DIR	Override mount config directory.
OMNIFS_CONTAINER_NAME	Override runtime container name.
RUST_LOG	Override CLI/runtime tracing filter.
GITHUB_TOKEN	Common static-token source for GitHub import/dev flows.
LINEAR_TOKEN	Common static-token source for Linear dev flows.

Prefer explicit CLI flags when documenting reproducible commands. Use environment variables when a task needs secret import or local override behavior.