Module env 

Small environment-variable helpers shared by the kernel + every app crate’s config loader. Single source of truth so parsing behavior (empty-string filtering, bool truthiness) stays identical everywhere. Treats an empty/whitespace value the same as unset.

Functions

parse_bool

Truthy-string bool (1|true|yes|on), or default when unset.

parse_or

Parse key into T, falling back to default when unset/empty/unparseable.

var

The trimmed value of key, or None when unset/empty.

var_or

var(key) or a string default.