Components

go-diskimages is a set of dependency-light Go modules (standard library only, CGO_ENABLED=0) arranged around one small disk-image format contract.

Module	Import path	Layer	What it does
interface	github.com/go-diskimages/interface	contract	The Format contract (Name/Create/Detect/ToRaw/Resize, composed from Creator/Detector/RawConverter/Resizer) that every codec satisfies structurally — codecs need not import it.
diskimage	github.com/go-diskimages/diskimage	toolkit	Unified toolkit + cmd/diskimage CLI: create/convert/resize images, in-image file operations, filesystem detection, ext4 label edit, and block devices (with optional LUKS/APFS-FDE decryption) over raw / QCOW2 / UDIF-DMG.
qcow2	github.com/go-diskimages/qcow2	codec	QCOW2 v2/v3 codec: create, detect, convert-to-raw (deflate clusters), grow-resize, and a lazy copy-on-write Device. Big-endian on-disk.
dmg	github.com/go-diskimages/dmg	codec	Apple UDIF/DMG helpers: detect variant, convert between UDRW/UDRO/UDSP/UDZO, resize, wrap/unwrap raw. Big-endian koly trailer + blkx mish tables. Pure Go, cross-platform (no hdiutil).
raw	github.com/go-diskimages/raw	codec	The unstructured identity format: create, detect (negative/fallback), identity convert, grow/shrink, and a read-write Device.
tart-oci	github.com/go-diskimages/tart-oci	codec	Pulls Tart VM images from an OCI registry, verifies every blob by digest, and materializes a byte-exact raw disk.

Each codec satisfies the interface Format contract so the diskimage toolkit can treat them polymorphically. GRUB config patching lives in the sibling go-bootloaders/grub package, not in this org.