ns-doctor — Machine setup

Propose to install everything. Detect what's missing, then present ONE plan that installs all of it — CLIs and the GUI build tools (Xcode, Android Studio) — and install the whole accepted batch in a single pass. The user accepts the plan once; don't drip-feed per tool. (GUI apps are big — call out the download size in the plan so the consent is informed — but include them in the "everything" proposal rather than treating them as an afterthought.)

<os_aware> Detect the OS first and pick the matching install column — never assume macOS:

uname -s   # Darwin = macOS, Linux = Linux; Windows = use PowerShell / winget

OS	Package managers used	Bootstrap if missing
macOS	Homebrew + npm	/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
Linux	system pkg mgr (apt/dnf/pacman) + npm + official installers	use the distro's manager or each tool's curl installer
Windows	winget (or scoop) + npm	winget ships with Windows 10+; scoop: iwr -useb get.scoop.sh | iex

npm-based tools install identically on all three. Only the native tools (bun, asc, fastlane, gcloud, Android Studio) differ per OS — use the row below. </os_aware>

<tool_manifest> Check is command -v <tool> unless noted. Install per OS:

Tool	Role	macOS	Linux	Windows
convex	backend (no global install)	npx convex …	same	same
eas	Expo / mobile builds	npm i -g eas-cli	same	same
vercel	web deploy	npm i -g vercel	same	same
gpc	Google Play Console (Android)	npm i -g @gpc-cli/cli	same	same
asc	App Store Connect (iOS)	brew install asc	download from asccli.sh	iOS release is macOS-only — skip
fastlane	Android publish fallback	brew install fastlane	gem install fastlane	gem install fastlane
bun	repo tooling	brew install bun	curl -fsSL https://bun.sh/install | bash	powershell -c "irm bun.sh/install.ps1|iex" or scoop install bun
gcloud	create the Play service account (optional)	brew install --cask google-cloud-sdk	apt/dnf repo	winget install Google.CloudSDK

Skip per-platform tools the user won't use: no iOS → skip asc; no Android → skip gpc/fastlane/gcloud. </tool_manifest>

<gui_apps> Included in the "install everything" proposal, with size called out:

App	Role	Check	macOS	Windows	Linux
Xcode	iOS build + Simulator (~7 GB)	xcodebuild -version	App Store, or brew install xcodes && xcodes install --latest	n/a (no iOS on Windows)	n/a
Android Studio	Android emulator + SDK (~1 GB + SDK)	command -v adb	brew install --cask android-studio	winget install Google.AndroidStudio	sudo snap install android-studio --classic or download

After Android Studio: create an AVD and ensure ANDROID_HOME is exported. Xcode needs an Apple ID + a one-time license accept (sudo xcodebuild -license accept). </gui_apps>