Add NMstate as CNCF sandbox project (accepted 2026-03-12) (#4777)

Signed-off-by: Ihor Dvoretskyi <[email protected]>

Author: idvoretskyi

landscape.yml

@@ -527,6 +527,17 @@ landscape:
             logo: mistio.svg
             crunchbase: https://www.crunchbase.com/organization/mist-io
             joined: '2021-02-01'
+          - item:
+            name: NMstate
+            description: >-
+              NMstate is a library with an accompanying command line tool that manages host networking settings in a declarative manner. When used in the Kubernetes environment it allows for declarative node network configuration through the Kubernetes API.
+            homepage_url: https://nmstate.io/
+            project: sandbox
+            repo_url: https://github.com/nmstate/nmstate
+            logo: cncf.svg
+            crunchbase: https://www.crunchbase.com/organization/cloud-native-computing-foundation
+            extra:
+              accepted: '2026-03-12'
           - item:
             name: Omni
             description: >-