How to access multiple repositories ?

Hi guys,

Is it possible to use multiple repositories in the create_app function in order to get all the packages i need ?
This is what i would like to do:

#packages needed
**pkgs1 = list(packages=c("mxnet"), repo = "https://apache-mxnet.s3-etc.com/etc")
pkgs2 = list(packages=c("jsonlite","shiny","magrittr"), repo = "https://cran.rstudio.com")**

#custom install
create_app(
app_name = "test",
app_dir = "app",
dir_out = "wizard",
**pkgs=list(pkgs1,pkgs2) ,**
remotes = c("talgalili/installr", "daattali/shinyjs"), # GitHub packages
include_R = TRUE, # Download R and install it with your app, if necessary # Old versions of R
privilege = "admin", # admin or lowest
default_dir = 'pf') # Install app in to Program Files

I hope this makes sense because i'm fairly new to R. Thank you guys anyway !