# \[Nix@NGI\] QLever packaged for NGI Forge and Nixpkgs

**URL:** https://discourse.nixos.org/t/nix-ngi-qlever-packaged-for-ngi-forge-and-nixpkgs/77633
**Category:** NGI Zero
**Created:** [May 15, 2026, 8:39am UTC](https://discourse.nixos.org/t/nix-ngi-qlever-packaged-for-ngi-forge-and-nixpkgs/77633 "2026-05-15T08:39:45Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![eljamm](https://discourse.nixos.org/user_avatar/discourse.nixos.org/eljamm/32/16466_2.png) [@eljamm](https://discourse.nixos.org/u/eljamm)
#### Post date: [May 15, 2026, 8:39am UTC](https://discourse.nixos.org/t/nix-ngi-qlever-packaged-for-ngi-forge-and-nixpkgs/77633/1 "2026-05-15T08:39:45Z")

</div>

As part of the [Nix@NGI packaging effort](https://nixos.org/community/teams/ngi), funded by NLnet under the NGI0 Review grant, we added **[QLever](https://github.com/ad-freiburg/qlever)**: a graph database that implements the RDF and SPARQL standards.

As such, we’ve packaged [`qlever`](https://github.com/ad-freiburg/qlever) and [`qlever-control`](https://github.com/qlever-dev/qlever-control) in Nixpkgs.  
The first contains the necessary tools to index datasets & start a server and the second provides a helpful wrapper that controls various aspects of QLever.

Furthermore, we packaged [`qlever-ui`](https://github.com/qlever-dev/qlever-ui) in our [NGI forge](https://discourse.nixos.org/t/nix-ngi-ngi-forge-0-1-released/77213), which provides an easy-to-use web interface for the server.

### Try it out

Visit the [application page](https://ngi-nix.github.io/forge/app/qlever-app), launch the QLever UI in a container or NixOS VM:

```auto
nix run github:ngi-nix/forge/3e2c94a5#qlever-app.vm

```

and follow the usage instructions.

### Share your feedback

We’d like to hear from you, so please leave your feedback using this [short survey](https://nixos-foundation.notion.site/35759d49e1be81edb478e3aade9f8e95?pvs=105).

Alternatively, you can join the:

- [office hours on Jitsi](https://jitsi.lassul.us/ngi-nix-office-hours) every [Tuesday and Thursday from 15:00–16:00 CET/CEST](https://calendar.google.com/calendar/u/0/embed?src=b9o52fobqjak8oq8lfkhg3t0qg@group.calendar.google.com)
- [NGIpkgs Matrix channel](https://matrix.to/#/#ngipkgs:matrix.org)

for any further comments or questions.

### Links

- [Project Documentation](https://docs.qlever.dev)
- [Development Tracking Issue](https://github.com/ngi-nix/projects/issues/173)

* * *

Packaged by @eljamm - [Nix@NGI team](https://nixos.org/community/teams/ngi)