README.md: add note on the up command

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Timothy DeHerrera 2021-01-11 17:32:58 -07:00
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@ -122,6 +122,15 @@ flk install yourConfig # deploys hosts/yourConfig.nix
flk yourConfig switch
```
### Note on `flk up`:
While the `up` sub-command is provided as a convenience to quickly set up and
install a "fresh" NixOS system on current hardware, committing these files is
discouraged.
They are placed in the git staging area automatically because they would be
invisible to the flake otherwise, but it is best to move what you need from
them directly into your hosts file and commit that instead.
## Build an ISO
You can make an ISO and customize it by modifying the [niximg](./hosts/niximg.nix)