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.