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Rekrei Platform

wercker status Code Climate Coverage Status security

About Rekrei

Rekrei (founded as Project Mosul, we changed our name in late 2015) is a volunteer project that crowdsources the digital reconstruction of lost heritage. The project was founded by Matthew Vincent and Chance Coughenour in March 2015. You can read more about the project on our about page

Core Team

Rekrei is a community of people who actively contribute towards the preservation of cultural heritage that has been lost through either natural means or human intervention. As a community effort, we believe in a community ownership. However, the project has a leadership component and final decisions are made by the core team. Currently, the core team is composed of the founders, if you are interested in becoming an active member of the core team, don't hesitate to contact us.

  • Matthew Vincent, founder, developer, photogrammetric processing
  • Chance Coughenour, founder, community manager, photogrammetric processing

Helping Out

Rekrei is all about community action. If you want to get involved, there are several ways to do so.

Identify Locations

There are lots of reports about heritage being destroyed or lost around the globe. If you are aware of these locations, drop a pin on the map and that will help the community know where they can focus their own efforts.

Upload Photos

Have you been to some of these places identified on the map? Do you have photos you've taken at those places? Why not donate them to the project, your photos could help cover missing angles in our digital reconstructions.

Organise Photos

It takes time to figure out what photos belong together. Each location acts as a container for the photos, but we need more fine-grain control, and that comes when we can group the photographs together in relevant groups. Right now, the human eye is still the best way to do this. Anyone can look for photos that share similar elements, architecture, a monument, part of a wall, whatever it might be. There is no limit on how many groups a photograph can belong to, so go ahead and start grouping photos that you think belong together.

Process Reconstructions

You don't have to be an expert to use photogrammetry software. We personally recommend using nframes, 3DF Zephyr, MetaShape, or Memento by Autodesk. The last one is free, and should be fairly easy and intuitive to use. The first three require a bit more familiarity with how photogrammetry works, but won't take long to learn.


Please feel free to contact us directly at or through the contact page on the website.


Please read the contributing guide.

Setting up the application

In the root of the application, run:


And then go to and you should find the application running. Hack away and have fun!

You can run the specs with:


Showing Gratitude for Open Source Support

We are grateful to 1password for supporting us with their open source program. If you are looking for a password manager, check out 1password.

We have been supported with some credits from Digital Ocean in the past, and we are grateful. If you are looking for a cloud provider, check out Digital Ocean. If you sign up with our affiliate link, you'll help us out!

BuildKite provides support with their awesome platform, and we are grateful. If you are looking for a CI/CD tool, check out BuildKite.


Platform for crowdsourcing the digital recreation of lost heritage




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