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4 posts tagged with "macOS"

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· 3 min read


Update: scrcpy 2.0+ supports Audio forwarding. You don't need sndcpy anymore. Thanks Romain Vimont.

I want to listen to the instructor playing on an Android app (Fiit) on my speakers which are connected to my MacBook. I am already sharing the screen of my Android on my MacBook by using scrcpy, a tool by Romain Vimont. sndcpy lets us to do this, also a tool made by Romain Vimont. The naming of these tools were inspired by C library function, strcpy, which copies strings between memory locations.

You want to play music or app sounds on your Android device on your macOS, and

  • You are displaying your Android screen on the mac already, but you want sound too
  • Your Android device doesn't have an audio jack
  • Your speakers aren't bluetooth
  • You don't want to use your headphones
    • I do not want to sweat onto my headphones, or
    • I want to share my music with others
  • Your macOS is connected via AUX cable (or USB-C/HDMI) to speakers, so let's use them instead

· 4 min read

TensorFlow models are saved in the protocol buffer format, which is an efficient way of storing and transporting data. I first heard and used it when I worked at Popsa where we used them to speed network requests between mobile apps and the backend. I then realised TensorFlow also uses this format to store models, including the weights and metadata. Popsa had a github repo specifically used to design and agree upon the interface between the backend and the mobile applications. gRPC also uses protocol buffers as the format. gRPC also uses protocol buffers as its format, by default. You can generate the classes to create, serialize and deserialize these objects in your preferred language with the protobuf compiler, protoc.

· 14 min read

Once you've built your CLI tool and you're happy with the functionality, you want to share it with others. This is called distribution. You'll need the Apple Developer Program membership ($99) to perform "Software distribution outside the Mac App Store" as per Apple. This post goes over making a CLI tool in Xcode, including Building, Signing and Notarizing, on macOS Big Sur.

When users download your app from outside the App Store, macOS (GateKeeper) adds an attribute to the file (the Quarantine flag). When users try to launch the downloaded application (or cli tool), GateKeeper checks that the files meet certain requirements, and either allows the user to launch the app, or restrict the launch and shows the following UI instead: