`misses init [--lib] [dir]` scaffolds a new proc-macro crate that uses
misses as its build toolchain. Two modes are supported:
Binary mode (default):
The .mrs source files live in src/macros/ and are compiled to
$OUT_DIR at build time via a generated build.rs. The generated
Rust code is never committed — users must have misses installed
to build from source.
Library mode (--lib):
The generated code is committed to generated/ so downstream users
of the crate need no misses install at all. The .mrs source and
build.rs are still present for the library author, who can
regenerate via `cargo build --features misses-source`. The
misses-source feature makes misses an optional build-dependency
and gates the regeneration path in build.rs with #[cfg(feature)].
The command also teaches `main.rs` a proper subcommand dispatch so
that `misses <file.mrs>` (compile) and `misses init` are cleanly
separated.
https://claude.ai/code/session_01D2g6zGJsBeUEzxBb7AvFDt