# One Mac Mini - Multiple isolated projects

**URL:** <https://discuss.bitrise.io/t/one-mac-mini-multiple-isolated-projects/7994>\
**Category:** Question & Answer\
**Tags:** bitrise-cli\
**Created:** [February 7, 2019, 1:41pm UTC](https://discuss.bitrise.io/t/one-mac-mini-multiple-isolated-projects/7994 "2019-02-07T13:41:26Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ogezue](https://avatars.discourse-cdn.com/v4/letter/o/f19dbf/32.png) [@ogezue](https://discuss.bitrise.io/u/ogezue)\
**Post date:** [February 7, 2019, 1:41pm UTC](https://discuss.bitrise.io/t/one-mac-mini-multiple-isolated-projects/7994/1 "2019-02-07T13:41:26Z")

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Any suggestions how to build up a local CI/CD system (bitrise cli) for one physical machine (best mac mini with 64GB RAM)? Requirement: Should support multiple projects in parallel that must be isolated from each other. I thought on using VMs but maybe there is a more elegant solution. (I don’t think that hosted bitrise is using the VM approach).

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**Author:** ![daniel](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/daniel/32/20_2.png) [@daniel](https://discuss.bitrise.io/u/daniel)\
**Post date:** [February 7, 2019, 1:49pm UTC](https://discuss.bitrise.io/t/one-mac-mini-multiple-isolated-projects/7994/2 "2019-02-07T13:49:58Z")

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Hi @ogezue,

Just to clarify, on Bitrise your builds run in VMs and by purchasing additional concurrencies your builds can run in parallel. Can I ask what the reason is behind staying with the on-prem approach?

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**Author:** ![ogezue](https://avatars.discourse-cdn.com/v4/letter/o/f19dbf/32.png) [@ogezue](https://discuss.bitrise.io/u/ogezue)\
**Post date:** [February 7, 2019, 2:41pm UTC](https://discuss.bitrise.io/t/one-mac-mini-multiple-isolated-projects/7994/3 "2019-02-07T14:41:07Z")

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Hi @daniel,  
thanks for your answer. I think 90% of my projects can use [bitrise.io](http://bitrise.io) but I also have projects where cloud is forbidden (medical, banks, …). Here I need a onPremise solution and I would like to have the same configurations like on [bitrise.io](http://bitrise.io) and benefit from one CI/CD-Framework.  
It would help me if I can understand how Bitrise is setting up their system. Challenge is that this projects are independent from each other - teams should not influence each other and data must be kept private.

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/bitrise/original/2X/d/d901cf2aad020f2dd11918afc89ec2089bb87b35.png) [@system](https://discuss.bitrise.io/u/system)\
**Post date:** [March 9, 2019, 2:41pm UTC](https://discuss.bitrise.io/t/one-mac-mini-multiple-isolated-projects/7994/4 "2019-03-09T14:41:09Z")

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