Module System

DUUMBI’s module system lets you publish, share, and reuse graph modules via the DUUMBI registry.

Config

Define dependencies in config.toml:

[workspace]
name = "myapp"
namespace = "myapp"
default-registry = "duumbi"

[registries]
duumbi = "https://registry.duumbi.dev"

[dependencies]
"@duumbi/stdlib-math" = "^1.0"

Installing dependencies

duumbi deps install

This resolves versions, downloads modules to .duumbi/cache/, and creates a lockfile (deps.lock).

Publishing a module

duumbi publish

This validates the graph, packages it as .tar.gz with integrity hashes, and uploads to the configured registry.

Dependency resolution

DUUMBI resolves modules in priority order:

1. Workspace — .duumbi/graph/ (highest priority)
2. Vendor — .duumbi/vendor/ (pinned, audited copies)
3. Cache — .duumbi/cache/ (downloaded from registry)
4. Not found → error E011

Vendoring

For reproducible offline builds:

duumbi deps vendor

CLI commands

Command	Description
duumbi deps install	Resolve and download all dependencies
duumbi deps add <name>	Add a new dependency
duumbi deps update [name]	Update to latest compatible versions
duumbi deps vendor	Copy dependencies to vendor/
duumbi deps audit	Verify lockfile integrity hashes
duumbi deps tree	Display dependency tree
duumbi publish	Package and upload module
duumbi search <query>	Search registries