Adding meta.yaml files I created for a couple external packages.

support/conda/pika/meta.yaml

+{% set name = "pika" %}
+{% set version = "1.1.0" %}
+
+package:
+  name: "{{ name|lower }}"
+  version: "{{ version }}"
+
+source:
+  url: "https://pypi.io/packages/source/{{ name[0] }}/{{ name }}/{{ name }}-{{ version }}.tar.gz"
+  sha256: 9fa76ba4b65034b878b2b8de90ff8660a59d925b087c5bb88f8fdbb4b64a1dbf
+
+build:
+  number: 0
+  noarch: python
+  script: "{{ PYTHON }} -m pip install . -vv"
+
+requirements:
+  host:
+    - pip
+    - python
+  run:
+    - python
+
+test:
+  imports:
+    - pika
+    - pika.adapters
+    - pika.adapters.utils
+
+about:
+  home: "https://pika.readthedocs.io"
+  license: BSD
+  license_family: BSD
+  license_file: 
+  summary: "Pika Python AMQP Client Library"
+  doc_url: 
+  dev_url: 
+
+extra:
+  recipe-maintainers:
+    - your-github-id-here

support/conda/python_abi/meta.yaml

+# This file created by conda-build 3.18.12
+# meta.yaml template originally from:
+# /home/conda/recipe_root, last modified Wed Mar  4 17:58:59 2020
+# ------------------------------------------------
+
+package:
+    name: python_abi
+    version: '3.8'
+build:
+    number: '1'
+    noarch: python
+    string: 1_cp38
+requirements:
+    run:
+        - python 3.8.*
+    run_constrained:
+        - pypy <0a0
+test:
+    commands:
+        - python --version
+about:
+    home: https://github.com/conda-forge/python_abi-feedstock
+    license: BSD-3-Clause
+    license_family: BSD
+    license_file: LICENSE
+    summary: Metapackage to select python implementation
+extra:
+    copy_test_source_files: true
+    final: true
+    recipe-maintainers:
+        - isuruf