Add recipe NABLA: Remove Endia package and replace it with its successor.

recipes/nabla/recipe.yaml

@@ -0,0 +1,43 @@
+context:
+  version: "25.3.0"
+
+package:
+  name: "nabla"
+  version: ${{ version }}
+
+source:
+  - git: https://github.com/nabla-ml/nabla.git
+    rev: f677a02a82caada7d233e11bf4e189fdb702ef7f
+
+build:
+  number: 0
+  script:
+    - mojo package nabla -o ${{ PREFIX }}/lib/mojo/nabla.mojopkg
+requirements:
+  host:
+    - max =25.3
+  run:
+    - ${{ pin_compatible('max') }}
+
+tests:
+  - script:
+      - if: unix
+        then:
+          - mojo test.mojo
+    requirements:
+      run:
+        - max =25.3
+    files:
+      recipe:
+        - test.mojo
+
+about:
+  homepage: https://github.com/nabla-ml/nabla
+  license: Apache-2.0
+  license_file: LICENSE
+  summary: Differtiable Programming in Mojo.
+  repository: https://github.com/nabla-ml/nabla
+
+extra:
+  maintainers:
+    - TilliFe

recipes/nabla/test.mojo

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+import nabla
+
+
+fn main() raises:
+
+    # Simple test to check if nabla is callable, extensive testing is done elsewhere!
+
+    fn foo(args: List[nabla.Array]) raises -> List[nabla.Array]:
+        return List(
+            nabla.sum(nabla.sin(args[0] * args[1])),
+            nabla.sum(nabla.cos(args[0] * args[1])),
+        )
+
+    var foo_vmapped = nabla.vmap(foo)
+    var foo_d1 = nabla.jacrev(foo_vmapped)
+    var foo_d2 = nabla.jacfwd(foo_d1)
+    var foo_d3 = nabla.jacfwd(foo_d2)
+
+    var args = List(nabla.arange((2, 3)), nabla.arange((2, 3)))
+
+    var res = foo(args)
+    print("foo checksum: ", nabla.sum(res[0]))  # , nabla.sum(res[1]))
+
+    var d1 = foo_d1(args)
+    print(
+        "foo_d1 checksum: ", nabla.sum(d1[0])
+    )  # , nabla.sum(d1[1]), nabla.sum(d1[2]), nabla.sum(d1[3]))
+
+    var d2 = foo_d2(args)
+    print(
+        "foo_d2 checksum: ", nabla.sum(d2[0])
+    )  # , nabla.sum(d2[1]), nabla.sum(d2[2]), nabla.sum(d2[3]), nabla.sum(d2[4]), nabla.sum(d2[5]), nabla.sum(d2[6]), nabla.sum(d2[7]))
+
+    var d3 = foo_d3(args)
+    print(
+        "foo_d3 checksum: ", nabla.sum(d3[0])
+    )  # , nabla.sum(d3[1]), nabla.sum(d3[2]), nabla.sum(d3[3]), nabla.sum(d3[4]), nabla.sum(d3[5]), nabla.sum(d3[6]), nabla.sum(d3[7]), nabla.sum(d3[8]), nabla.sum(d3[9]), nabla.sum(d3[10]), nabla.sum(d3[11]), nabla.sum(d3[12]), nabla.sum(d3[13]), nabla.sum(d3[14]), nabla.sum(d3[15]))