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i might not be using the right terms here

```
$ ./pants help-advanced resolve |grep jvm-options
--resolve-ivy-jvm-options=&lt;option&gt;... (--resolve-ivy-jvm-options=&lt;option&gt;...) ... (default: ['-Xmx1g','-XX:MaxPermSize=256m’])```

so that’s an example of where IvyTaskMixin gets mixed into the task bound by `resolve`

<https://rbcommons.com/s/twitter/r/3522/>

because it sets specific jvm options for http proxying on the `Ivy` class which gets used by `IvyTaskMixin` so every ivy task will get them

i dont think im doing a good job conveying my thoughts here. might need to come back tomorrow

yeah - `pants.ivy.bootstrapper.Bootstrapper` uses a method of the `IvySubsystem` (the global “hook” for Ivy configuration/etc) to get these extra options when its bootstrapping the `pants.ivy.ivy.Ivy` instance

i get confused about scopes (esp. nested ones) and goals w multiple tasks

because “ivy” isnt a goal… but it is an option scope that allows some common customization of all tasks that use ivy…?

whereas “resolve” is a goal _and_ a scope right?

the subsystem just gives you a global place for options, state keeping and methods to access all of this or do other things related to the subsystem

and then task implementations also have their own options scopes

you can explore any options scope using the help via `./pants help-advanced &lt;scope&gt;`

may make more sense to just pkoe around at the various scopes and see how they surface to the user

it is not going to be easy to make what i was imaging work

there’s also a disconnect from goals-&gt;tasks

```src/python/pants/backend/jvm/register.py
41:from pants.backend.jvm.tasks.ivy_resolve import IvyResolve
140:  task(name='ivy', action=IvyResolve).install('resolve', first=True)```

so the way you map goals to tasks can also affect scope

and then in the way goals apply to targets

```contrib/go/src/python/pants/contrib/go/register.py
44:  task(name='go', action=GoFetch).install('resolve’)```

e.g. ‘resolve’ goal for go targets uses GoFetch vs IvyResolve for jvm target ‘resolve'