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/lint.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+main() {
+  cd "$(dirname "$0")/../.."
+
+  eslint --max-warnings=0 --fix $(git ls-files "*.ts" "*.tsx" "*.js")
+  stylelint $(git ls-files "*.css")
+  tsc --noEmit
+  shellcheck -e SC2046,SC2164 $(git ls-files "*.sh")
+}
+
+main "$@"