Allow empty url on root input and have a follows.

[vic]

Fixes #4

[Copilot]

Pull Request Overview

This PR updates the flake input configuration to allow empty URLs on the root input and adds a new follows option for flake inputs.

• Sets url default to an empty string and introduces follows-option for follow paths.
• Adjusts inputsExpr in write-flake.nix to prepare for conditional handling of url and follows (currently commented out).

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
modules/write-flake.nix	Replaced direct url inheritance in inputsExpr with an empty block and commented out conditional snippets.
modules/options.nix	Added follows-option, set default url to "", and wired follows into both top-level and submodule options.

Comments suppressed due to low confidence (1)

modules/options.nix:18

• [nitpick] The new follows option is not described in the module documentation or README. Please add documentation explaining its purpose, default behavior, and example usage.

  follows-option = lib.mkOption {