launcher

Prepare the environment for a sub-process and launch it:

• Read secrets from AWS secret manager and inject them into the environment.
• Set max open file limit.

TL;DR

go run github.com/flashbots/launcher/cmd \
    --aws-secret-arn test \
  bash -c 'echo "${_ANSWER} is the answer to ${_QUESTION}"'

42 is the answer to The Ultimate Question of Life, the Universe, and Everything

Also:

go run github.com/flashbots/launcher/cmd \
    --ulimit-soft 1024 \
    --ulimit-hard 4096 \
  bash -c "ulimit -Sn; ulimit -Hn"

1024
4096