I remember having to do this with icomoon back in the day when icon fonts were all the rage because svg support in ie11 was lacking and downloading the entirety of font awesome was a huge payload hit.
Only slightly related, but I have been using Oban as a Postgres native message queue in the elixir ecosystem and loving it.
For my use case, it’s so much simpler than spinning up another piece of infrastructure like Kafka or rabbitmq