Edeliver + esbuild working config?

hi

I am using Phoenix 1.6, edeliver, mix twailwind and esbuild and trying to use “defaults”.

I need some guidance on a working configuration for edeliver.

mix.exs deps

      {:esbuild, "~> 0.2", runtime: Mix.env() == :dev},
      {:tailwind, "~> 0.1", runtime: Mix.env() == :dev},

mix.exs alias

      "assets.deploy": ["tailwind default --minify", "esbuild default --minify", "phx.digest"]

.deliver/config

  __sync_remote "
    [ -f ~/.profile ] && source ~/.profile
    set -e
    cd '$BUILD_AT'
    APP='$APP' MIX_ENV='$TARGET_MIX_ENV' $MIX_CMD tailwind default --minify
  "

  __sync_remote "
    [ -f ~/.profile ] && source ~/.profile
    set -e
    cd '$BUILD_AT'
    APP='$APP' MIX_ENV='$TARGET_MIX_ENV' $MIX_CMD esbuild default --minify
  "

mix config.exs

config :esbuild,
  version: "0.14.0",
  default: [
    args: ~w(js/app.js --bundle --target=es2017 --outdir=../priv/static/assets),
#      ~w(js/app.js --bundle --target=es2017 --outdir=../priv/static/assets --external:/fonts/* --external:/images/*),
    cd: Path.expand("../assets", __DIR__),
    env: %{"NODE_PATH" => Path.expand("../deps", __DIR__)}
  ]

config :tailwind,
  version: "3.0.10",
  default: [
    args: ~w(
      --config=tailwind.config.js
      --input=css/app.css
      --output=../priv/static/assets/app.css
    ),
    cd: Path.expand("../assets", __DIR__)
  ]  

mix tailwind default --minify works fine, but the mix esbuild default --minify fails

** (Mix) The task "esbuild" could not be found. Did you mean "hex.build"?

A remote command failed on:

  root@buildserver

Output of the command is shown above and the command executed
on that host is printed below for debugging purposes:

FAILED with exit status 1:

    [ -f ~/.profile ] && source ~/.profile
    set -e
    cd '/opt/app/builds'
    APP='app' MIX_ENV='prod' mix esbuild default --minify

any guidance would be appreciated, struggling to understand why mix esbuild cannot be found but mix phx.digest and mix tailwind work fine

mix tailwind, esbuild work fine in dev, but when I try prod edeliver I get the error above