“A terminal multiplexer may sound like a narrow place to start a company, but the lowly terminal is the common denominator across today’s developers, agents, tools, and infrastructure.”
Hashimoto’s pitch against tmux and Screen is technically sound. They echo every keystroke and burn cycles reconciling local and remote state, and Superlogical skips that by pushing the work into the client. The catch is in the fine print: it needs a very smart, high-functioning client, which today means one built on libghostty. That is a multiplexer that only works with his terminal, and “common denominator across developers and agents” is the part investors are buying.