将日志或配置引用传递给自定义Go程序包

I have a Go main-application that uses a custom log package and a custom config package.

This application "consumes" other packages that they need more logging or config parameters. Perhaps, a useful example is a custom api-package:

• It should print some debug|info|warning logs (the errors are managed as usual by the caller, in this case, the main-application).
• It should have access to values stored in the config (e.g. a server url/port, the environment of the main-application (development, test or production),... ).

I see three solutions to solve this problem:

1. Passing a pointer (of log and config) from the main object to the sub-package when the package is "initialised", then it will use this pointer like the main-application.
2. Initialise these dependencies (log or config) directly into the sub-package too, but this could raise concurrency issues between the main-application's instance vs. the package's instance.
3. Pass to each method the required arguments (but I would like to avoid build methods with huge args list).

At the moment I use method 1, am I doing it right? What is the Go conventions about this? Are there other ways to solve this?

EDIT

Just to explain, why it is not a duplicate of the proposed "duplicated" questions:

• The answer proposed by icza: it takes care only for logging (writing "somewhere") and not for config (reading and writing). No other options are taken in consideration, for example which one follow at best the standards, which one is more performant,...
• The other answer proposed by icza: it takes only care about a single application, this is not the case at all, because I already know how use the logging and the config in one "application" (or in goroutines).

If you mark as duplicate, please just explain why. So I can see if this is a really duplicate or if my question was misunderstand.