ecto_psql_extras: "null_indexes" method added Database Session Store with Elixir and Plug

Conditional context for macros

Blogged on how to use __CALLER__.context and __CALLER__.context_modules to build macros, which behaviour depends on the context (different/extended abilities when in guard, when in match, elsewhere.)

https://rocket-science.ru/hacking/2021/02/13/conditional-context