This is a simple script that helps you to easily run different configurations of nvim. Copy it somewhere to your $PATH.
To copy your current nvim config to a named location and link to it, issue:
switch_nvim_config init my_config
Now you can reset your nvim configs to 0 state:
switch_nvim_config purge
Now install astronvim, lazy or whatever is hip.
Run
switch_nvim_config init astro (or lazy or whatever)
to keep its files at a named locations
switch_nvim_config relink my_config
to get your original config back. Rinse and repeat.
switch_nvim_config relink astro