People/mhartl
Michael Hartl

Michael Hartl

former founderYC
Specializes inProductivity

Author of ten Learn Enough books and the Ruby on Rails Tutorial, founder of Softcover (acquired May 2022). Founder of Insoshi (YC W08), an open-source social network (now defunct).

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Insoshi
Former Founder

HALTE4D is a digital platform for mastering online marketing skills.

Worked alongside
Long Nguyen
Roles are derived from products, launches and repositories we track — not from self-description.