feat(wrapping): introduce wrapped configurations

overlays/derivations/nu/cfg/config.nu

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+# config.nu
+#
+# Installed by:
+# version = "0.101.0"
+#
+# This file is used to override default Nushell settings, define
+# (or import) custom commands, or run any other startup tasks.
+# See https://www.nushell.sh/book/configuration.html
+#
+# This file is loaded after env.nu and before login.nu
+#
+# You can open this file in your default editor using:
+# config nu
+#
+# See `help config nu` for more options
+#
+# You can remove these comments if you want or leave
+# them for future reference.
+
+mkdir ($nu.data-dir | path join "vendor/autoload")
+starship init nu | save -f ($nu.data-dir | path join "vendor/autoload/starship.nu")
+zoxide init nushell | save -f ($nu.data-dir | path join "vendor/autoload/zoxide.nu")

overlays/derivations/nu/cfg/env.nu

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+# env.nu
+#
+# Installed by:
+# version = "0.101.0"
+#
+# Previously, environment variables were typically configured in `env.nu`.
+# In general, most configuration can and should be performed in `config.nu`
+# or one of the autoload directories.
+#
+# This file is generated for backwards compatibility for now.
+# It is loaded before config.nu and login.nu
+#
+# See https://www.nushell.sh/book/configuration.html
+#
+# Also see `help config env` for more options.
+#
+# You can remove these comments if you want or leave
+# them for future reference.