Switching between nvim configs can be really easy to do since they implemented the NVIM_APPNAME
Environment Variable.
NVIM_APPNAME=nvim-lazyvim nvim
Now config will be loaded from ~/.config/nvim-lazyvim
Michael lays out some aliases in the full article.
alias v='nvim' # default Neovim config alias vz='NVIM_APPNAME=nvim-lazyvim nvim' # LazyVim alias vc='NVIM_APPNAME=nvim-nvchad nvim' # NvChad alias vk='NVIM_APPNAME=nvim-kickstart nvim' # Kickstart alias va='NVIM_APPNAME=nvim-astrovim nvim' # AstroVim alias vl='NVIM_APPNAME=nvim-lunarvim nvim' # LunarVim