Author of a 2025 blog post arguing that the 'binary' framing of server-rendered HTML (for toys and personal blogs) vs single page apps (for real engineers and real businesses) is wrong. Instead developers should treat frontend complexity as a gradient and start at the low-complexity end, growing organically. Level 4 in his stack resembles Stimulus — not a Rails developer himself, but his model naturally accommodates Hotwire/Turbo.