Elamur: **Mova** · [Parse](https://mova.elamur.ai/free/en/parse/) · [Dictionary](https://md.dictionary.elamur.ai/free/en/) · [Translate](https://md.translate.elamur.ai/free/en/) · [Research](https://md.research.elamur.ai/free/en/) · [MCP](https://mcp.elamur.ai/) · [Groupants](https://md.groupants.elamur.ai/free/en/)

[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/docs/tools/modules/)

[home](https://md.mova.elamur.ai/free/en/) / [docs](https://md.mova.elamur.ai/free/en/docs/) / [tools](https://md.mova.elamur.ai/free/en/docs/tools/) / mova-modules

# mova-modules

Installs Mova's add-on modules: hash-pinned data packages under their own licences (for example dictionaries), never part of the repository or the core binaries. A module goes into modules, each file checked against its SHA-256; `MOVA_MODULES=<name>` lets the dictionary store load a module's layers. The format and the published modules are described in [Add-on modules](https://md.mova.elamur.ai/free/en/docs/repo-docs/modules/).

The binary is `mova`, the user-facing entry, with three subcommands: `modules`, `fetch` (a release's files, [Mova 0.5 — the release files](https://md.mova.elamur.ai/free/en/docs/releases/0.5-files/)) and `oewn` (Open English WordNet 2025 for the world model). `install.sh` builds it and runs `fetch` and `oewn install`.

```
cargo build --release --locked -p mova-modules
target/release/mova modules list
target/release/mova modules install <module.json URL>
target/release/mova fetch 0.5 corpus
target/release/mova oewn check
```

The other `modules` subcommands are `info`, `verify`, `install-torrent`, `make-torrent` and `remove`. `mova fetch --page` prints the release-files page from the manifest.

An unpacked release archive must hold exactly the manifest's `contents` (sizes, SHA-256, no other files); a cached unpacked folder is reused only after the same check, otherwise the verified archive is unpacked again. `mova oewn install` checks the zip's SHA-256, unpacks it into a staging folder, requires exactly the files of `oewn-2025-json.tsv` (an inventory bound to that SHA-256) and a successful load (every sense resolves to a synset), and only then renames the folder to json; an installed folder is reused only when it passes the same checks.

- [← previous External module overlays](https://md.mova.elamur.ai/free/en/docs/tools/module-overlay/)
- [next → mova-json](https://md.mova.elamur.ai/free/en/docs/tools/mova-json/)
- [↑ back to tools](https://md.mova.elamur.ai/free/en/docs/tools/)