commit a7f25269ded3e299157a4d3da17f459af5ca8c01 · bmann.ca/bmannconsulting.com

_journals/2024-01-30_0919.md

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       ---

     

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       title: January 30th, 2024

     

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       date: 2024-01-30, 09:19:38 -08:00

     

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       section: journal

     

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       link: https://github.com/oxidecomputer/helios

     

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       ---

     

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       [[Oxide Computer]] has released Helios, a distribution of [illumos](https://www.illumos.org/) that powers their Oxide Rack computer.

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_notes/Coase's Penguin.md

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       ---

     

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       link: http://www.benkler.org/CoasesPenguin.html

     

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       tags:

     

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         - opensource

     

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         - article

     

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         - art

     

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         - Coase

     

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         - paper

     

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       title: Coase's Penguin, or Linux and the Nature of the Firm

     

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       author:

     

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         - Yochai Benkler

     

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       published: 2002-12-03

     

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       ---

     

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       Defines [[Commons Based Peer Production]]

     

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       Full [PDF at the Yale Law Journal](https://www.yalelawjournal.org/pdf/354_t5aih5i1.pdf)

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_notes/Commons Based Peer Production.md

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       Blog post by me from 2018: [Commons Based Peer Production](https://2023.bmannconsulting.com/blog/2018/10/11/commons-based-peer-production/)

     

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       > The problem with the term open source is that everyone means something different when they use it. Some people just mean licensing. Some people think of a particular community’s set of practices. Others think that it means some kind of fuzzy democracy and mob rule.

     

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       Ted Leung, [Explaining Commons Based Peer Production, er, Open Source](https://www.sauria.com/py-bin/pyblosxom/pyblosxom.cgi/computers/open_source/1233.html)

     

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       > In this paper I explain that while free software is highly visible, it is in fact only one example of a much broader social-economic phenomenon. I suggest that we are seeing is the broad and deep emergence of a new, third mode of production in the digitally networked environment. <mark>I call this mode "commons-based peer-production," to distinguish it from the property- and contract-based models of firms and markets. Its central characteristic is that groups of individuals successfully collaborate on large-scale projects following a diverse cluster of motivational drives and social signals, rather than either market prices or managerial commands.</mark>

     

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       Yochai Benkler, [[Coase's Penguin]]

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_notes/UTM.md

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- app

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- virtualization

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- iOS

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- opensource

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- Apache

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link: https://getutm.app

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github: https://github.com/utmapp/

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---

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Virtualization for MacOS and iOS that uses Apple’s hypervisor framework.

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<https://mac.getutm.app>

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As well as running other operating systems, can also virtualize MacOS.

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> UTM employs Apple's Hypervisor virtualization framework to run ARM64 operating systems on Apple Silicon at near native speeds. On Intel Macs, x86/x64 operating system can be virtualized. In addition, lower performance emulation is available to run x86/x64 on Apple Silicon as well as ARM64 on Intel. For developers and enthusiasts, there are dozens of other emulated processors as well including: ARM32, MIPS, PPC, and RISC-V. Your Mac can now truly run anything.

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### What's the difference in the Mac App Store version?

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UTM is and always will be completely free and open source. The Mac App Store version is identical to the free version and there are no features left out of the free version. The only advantage of the Mac App Store version is that you can get automatic updates. Purchasing the App Store version directly funds the development of UTM and shows your support .

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## iOS

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Only runs jailbroken

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Runs on iOS through jailbreak or sideloading with an Apple Developer account.

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From the [FAQ](https://getutm.app/faq/):

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UTM is an app for running other operating systems on your iPhone or iPad. It is **not** for running iOS on other systems. This allows you, among other things, to run Windows or Linux on your iOS device at a usable speed.

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### How does UTM work?

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The majority of the work is done by [qemu](https://www.qemu.org/). Because iOS devices lack hardware virtualization support, we cannot use the KVM accelerator and instead use the TCG accelerator which does dynamic code translation and JIT compilation. UTM also includes a [SPICE](https://www.spice-space.org/) client written for Metal. This connects with the SPICE server in qemu and allows for some para-virtualization as the QXL graphics driver running on the guest OS can send low-level draw commands directly to Metal APIs.

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For more in-depth information on the changes made to qemu for JIT to work on iOS, check out [this document](https://github.com/utmapp/qemu/blob/ios-support/docs/devel/ios.rst).

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### What are the limitations?

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The lack of hardware virtualization on Apple A-chips means that even for ARM code we must re-compile it with JIT. Therefore performance would never reach the levels possible with KVM. There is also no support for GPU virtualization so that means no DirectX or OpenGL. This makes most modern games non-playable.

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