Add NPM package, debs, rpms and refactor CI/build process

Closes many issues that I'll prune after adding more docs
for users.

ci/dev/vscode.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# 1. Ensures VS Code is cloned.
+# 2. Patches it.
+# 3. Installs it.
+main() {
+  cd "$(dirname "$0")/../.."
+
+  git submodule update --init
+
+  # If the patch fails to apply, then it's likely already applied
+  yarn vscode:patch &> /dev/null || true
+
+  (
+    cd lib/vscode
+    # Install VS Code dependencies.
+    yarn
+  )
+}
+
+main "$@"