I'm trying to bring up a Mastodon instance and running into this:

RAILS_ENV=production bundle exec rails assets:precompile --trace
** Invoke assets:precompile (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
** Execute assets:precompile
** Invoke webpacker:compile (first_time)
** Invoke webpacker:verify_install (first_time)
** Invoke webpacker:check_node (first_time)
** Execute webpacker:check_node
** Invoke webpacker:check_yarn (first_time)
** Execute webpacker:check_yarn
** Invoke webpacker:check_binstubs (first_time)
** Execute webpacker:check_binstubs
** Execute webpacker:verify_install
** Invoke environment
** Execute webpacker:compile
Compiling...
Compilation failed:
yarn run v1.22.19
info Visit yarnpkg.com/en/docs/cli/run for documentation about this command.

warning You don't appear to have an internet connection. Try the --offline flag to use the cache for registry queries.
warning You don't appear to have an internet connection. Try the --offline flag to use the cache for registry queries.
error Command "webpack" not found.

I do have an Internet Connection, I also have plenty of RAM, 256GB with 512GB swap.

Any helpful hints appreciated.