Add Homebrew install instruction

[kidonng]

I submitted ComfyUI Desktop to Homebrew and it's been available there for some time, it would be awesome if this is also mentioned in the official docs, instead of having to be discovered by users themselves.

[robinjhuang]

Thanks for doing that! I tested and confirmed that this works. Could you do me a favor and change the download url on homebrew to this?

https://download.comfy.org/mac/dmg/arm64

[kidonng]

Homebrew will auto update the version/URL shortly after a new release is made, so there's no need to always point to the latest version, which Homebrew prefer not to use if a stable version/URL is available.

[robinjhuang]

@kidonng it's not the latest version I want to update. It's the host domain name

[kidonng]

The resolved URL does point to ToDesktop though?

$ curl -i https://download.comfy.org/mac/dmg/arm64
HTTP/2 302
date: Tue, 10 Jun 2025 05:45:53 GMT
location: https://dl.todesktop.com/241012ess7yxs0e/mac/dmg/arm64

If ComfyUI does provide a versioned URL e.g. https://download.comfy.org/mac/dmg/arm64?version=0.4.51 then that can be used.

If you would really prefer Homebrew to use download.comfy.org as it currently is, I could submit a pull request for that, though it also requires version :latest and disabling checksumming, which I don't think is welcomed by Homebrew and users probably don't want that either.

Is there a technical reason for this?

[kidonng]

Anyway, a little off-topic for this pull request, hit me (kidonng) on Comfy Discord if you feel GitHub is not the best place for discussion.

[robinjhuang]

The technical reason is that we want to use our own domain as source of truth in case we move off todesktop in the future!

i believe https://download.comfy.org/mac/dmg/arm64?version=0.4.51 does work. Any query parameters that worked on the ToDesktop one should work here. This is just a proxy.

[kidonng]

Consulting the docs, it seems to work for Windows binaries:

$ curl -i -L https://download.comfy.org/versions/0.4.32/windows
HTTP/2 302
date: Thu, 12 Jun 2025 09:02:07 GMT
location: https://dl.todesktop.com/241012ess7yxs0e/versions/0.4.32/windows
strict-transport-security: max-age=15724800; includeSubDomains

HTTP/2 200
date: Thu, 12 Jun 2025 09:02:08 GMT
content-type: binary/octet-stream
content-length: 138837280
accept-ranges: bytes
cache-control: no-store
content-disposition: attachment; filename="ComfyUI Setup 0.4.32 - x64.exe"

But not for Mac binaries:

$ curl -i -L https://download.comfy.org/versions/0.4.32/mac
HTTP/2 302
date: Thu, 12 Jun 2025 09:02:23 GMT
location: https://dl.todesktop.com/241012ess7yxs0e/versions/0.4.32/mac
strict-transport-security: max-age=15724800; includeSubDomains

HTTP/2 404
date: Thu, 12 Jun 2025 09:02:24 GMT
content-type: text/plain;charset=UTF-8
content-length: 21
server: cloudflare
cf-ray: 94e82b477e99dee3-NRT

Couldn't find mac app

$ curl -i -L https://download.comfy.org/versions/0.4.32/mac/dmg/arm64
HTTP/2 404
date: Thu, 12 Jun 2025 09:04:09 GMT
strict-transport-security: max-age=15724800; includeSubDomains

Assuming download.comfy.org points to dl.todesktop.com/241012ess7yxs0e, the resolved URL does work though:

$ curl -i -L https://dl.todesktop.com/241012ess7yxs0e/versions/0.4.32/mac/dmg/arm64
HTTP/2 200
date: Thu, 12 Jun 2025 09:05:29 GMT
content-type: binary/octet-stream
content-length: 176578936
accept-ranges: bytes
cache-control: no-store
content-disposition: attachment; filename="ComfyUI 0.4.32 - arm64.dmg"

Which means it could be something with the proxy, if you could figure that out.

But honestly, I don't see why we can't change Homebrew's source when you do move off ToDesktop. The change is not going to take days to reflect and prevent users from installing.