Author

# All articles by Aleksi O'Connor

Aleksi is Sharetribe's Developer Advocate and the co-Editor-in-chief of Sharetribe's Developer Blog. He has a master’s degree in technology with a strong focus on service design and UX.

![Picture of Aleksi, who has short, curly brown hair is looking directly at the camera with a slight smile. They are wearing a light grey t-shirt, a thin silver chain necklace, and a small hoop earring in their left ear. The background is plain and neutral, and the photo is cropped in a hexagonal shape.](https://images.prismic.io/sharetribe/aG5Fu0MqNJQqHt4I_aleksi-job-3copy.png?auto=format%2Ccompress&fit=max&w=1920)

## All articles by Aleksi O'Connor

![A satellite image of a coastline](https://images.prismic.io/sharetribe/aG5vbkMqNJQqHuQ7_usgs--ZSar3PhDSI-unsplash.jpg?auto=format%2Ccompress&fit=max&w=3840)

Developer Blog

[Modify listing card thumbnails](/developer-blog/modify-listing-card-styles/)

Learn how to customise the thumbnail for listings that don't have a listing image.

![A person in a brown sweater using their laptop.](https://images.prismic.io/sharetribe/c2efe159-443d-4adf-be1b-73529eb9ed23_csp-cover-photo.jpeg?auto=compress%2Cformat&fit=max&w=3840)

Developer Blog

[Content Security Policy](/developer-blog/content-security-policy/)

How to manage and edit the Content Security Policy with the Sharetribe Web Template.

![A picture shot from above, showing a computer screen, a mobile phone and a person's hands who is drawing something with a pink marker on a paper.](https://images.prismic.io/sharetribe/9d23eabe-fdb0-4673-8796-6763d9ebd72d_firmbee-com-gcsNOsPEXfs-unsplash.jpeg?auto=compress%2Cformat&fit=max&w=3840)

Developer Blog

[Sharetribe's Postman collection](/developer-blog/sharetribe-postman-collection/)

Sharetribe's Postman collection lets you test our APIs using the Postman application. It can be helpful during development and particularly when you are creating a custom client application from scratch.

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