How to modify AppContext or build global methods?

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How to modify AppContext or build global methods?

I just started using loco. I read the website and docs help documents in detail. I learned that AppContext can carry most global component objects, but I actually need to register some custom components, such as redis...
Since I just started using axum and loco recently, my understanding may not be correct. I read redis.rs in detail and did not find that it supports axum middle layer, etc. Then the way I thought of was to parse the connection information from the configuration normally, then initialize and obtain the redis client and put it in a static global variable. But I didn't find that loco has relevant configuration options. To save these custom objects.
Do I need to manage global variables myself in this case? I read the relevant code and manual of AppContext, and AppContext does not seem to support inserting objects by itself.