generated: '2026-09-12' method: searched source: https://techradar.greenchoice.nl/config.json note: >- Greenchoice publishes a public Technology Radar at https://techradar.greenchoice.nl/ — a Zalando tech-radar visualisation fed by a machine-readable config.json that this pass fetched verbatim (HTTP 200, 2026-09-12). It is dated 2025.11 and carries 84 entries across four quadrants with a four-ring assessment. This is the single most substantive machine-readable document Greenchoice publishes about its own engineering, and it is what a reader should look at given there is no developer portal. Saved verbatim as greenchoice-tech-radar.json. site: https://techradar.greenchoice.nl/ data: techradar/greenchoice-tech-radar.json data_status: 200 radar_date: '2025.11' entry_count: 84 based_on: https://github.com/zalando/tech-radar quadrants: - Infrastructuur & Platformen - Talen & Frameworks - Architectuur & Cultuur - Ondersteuning & Tools rings: - id: 0 name: Gebruik meaning: In (or ready for) production use. count: 62 - id: 1 name: Probeer meaning: Interesting; may form part of an MVP in production. count: 3 - id: 2 name: Onderzoek meaning: Looks interesting; may form part of a POC outside production. count: 8 - id: 3 name: Verminder meaning: Use should be reduced. count: 11 corroborates: - >- "Duende IdentityServer" appears on the radar, which independently corroborates the OpenID Connect discovery document found at https://sso.greenchoice.nl/.well-known/openid-configuration — the endpoint layout there (/connect/authorize, /connect/par, /connect/ciba) is IdentityServer's. - >- The radar is predominantly a Microsoft Azure / .NET estate (Azure Container Apps, Azure Service Bus, Azure KeyVault, Bicep, C#, MassTransit, Application Insights) with GitHub and Azure DevOps for delivery.