Now that you mention Kilian Jornet (the world famous sky runner), I can't refrain from saying that at KiteBit we actually built and run the service used by him and others to sell his movies.
Technology stack we have set up at KiteBit is RoR + Unicorn + Redis + Postgres + Vagrant. And we make also make use of Sendgrid + AWS S3 + CloudFront + ElasticTranscoder.
Kilian's movies and other stuff from him are on sale at his website summitsofmylife.com. This is a PrestaShop store but when it comes to the downloads and video streaming it's KiteBit (our service) which takes the relieve.
Technology stack we have set up at KiteBit is RoR + Unicorn + Redis + Postgres + Vagrant. And we make also make use of Sendgrid + AWS S3 + CloudFront + ElasticTranscoder.
Kilian's movies and other stuff from him are on sale at his website summitsofmylife.com. This is a PrestaShop store but when it comes to the downloads and video streaming it's KiteBit (our service) which takes the relieve.