λ cat r.in
cffi>=1.17
snowflake-connector-python>=3.16
snowflake-sqlalchemy>=1.7.7
fastapi-mail>=1.5.7
uvicorn>=0.38

λ uv pip compile r.in
  × No solution found when resolving dependencies:
  ╰─▶ Because only the following versions of snowflake-connector-python are available:
          snowflake-connector-python<=3.16.0
          snowflake-connector-python==3.17.0
          snowflake-connector-python==3.17.1
          snowflake-connector-python==3.17.2
          snowflake-connector-python==3.17.3
          snowflake-connector-python==3.17.4
          snowflake-connector-python==3.18.0
          snowflake-connector-python>4.0.0
      and snowflake-connector-python>=3.16.0,<=3.18.0 depends on cffi>=1.9,<2.0.0, we can conclude that
      snowflake-connector-python>=3.16.0,<4.0.0 depends on cffi>=1.9,<2.0.0.
...