YC Summer 2026 (S26) founder

Michael Serrano

Founder of Rindler, The IDE for Tokenmaxxers

Company

Michael Serrano is listed as a founder of Rindler. We build Maxxwell, a desktop app for people who run several coding agents at once. Past two or three sessions, you become the bottleneck. Every session asks you something, most of it small, and you spend the day answering instead of deciding. It is also hard to tell which sessions are making progress, which are stuck on something trivial, and which have quietly started building the wrong thing. Maxxwell puts every session in one window and marks each one working, idle, or waiting on you. On top of that sits an orchestrator, a real coding-agent session of its own that reads the others and reports back. You talk to it instead of to twelve terminals. It tells you what landed, what it decided for you, and what actually needs your call. Every worker is your own tool, unmodified. Claude Code, Codex and Cursor Agent run in real terminal sessions you can attach to and take over at any point

Founder traction evidence

Public posts and activity attributed directly to this founder.

  1. X

    Ever tried to automate a real website and ended up babysitting Playwright selectors, browser-use agents, or computer-use agents? Watch me use Rindler to set up my plans for the world cup ⚽️🏆 https://t.co/Ut39U6aVTm

    Ever tried to automate a real website and ended up babysitting Playwright selectors, browser-use agents, or computer-use agents? Watch me use Rindler to set up my plans for the world cup ⚽️🏆 https://t.co/Ut39U6aVTm

  2. LinkedIn

    Rindler Launch YC post

    Michael Serrano wrote that Rindler (YC S26) launched on Launch YC.

  3. X

    Launched on Product Hunt, would really appreciate the support! If you log into the same system every day for the same tasks, we are making reliable automation for you :)

    Launched on Product Hunt, would really appreciate the support! If you log into the same system every day for the same tasks, we are making reliable automation for you :)

  4. X

    What's your take on Local LLMs? Is Qwen 3.6 27B still the best for coding & TPS?

    What's your take on Local LLMs? Is Qwen 3.6 27B still the best for coding & TPS?

  5. X

    Is it just me or is Claude weekly usage much worse than before? I don't understand where the 50% boost is coming from.

    Is it just me or is Claude weekly usage much worse than before? I don't understand where the 50% boost is coming from.

  6. X

    So who was getting heard 😭

    So who was getting heard 😭

  7. X

    Background agents no longer stop to ask permission when they finish they commit, push, and open a draft PR on their own.

    Some takeaways: 1. Background agents no longer stop to ask permission when they finish they commit, push, and open a draft PR on their own. There are also new hooks that notify you when an agent needs input or completes. You can genuinely start a task and leave. 2. Subagents got