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Infinite Mac

80's and 90's era classic Macs that load instantly in a browser and have access to a large software library. The full collection is at infinitemac.org. Shortcuts are available for System 6, System 7, Mac OS 8, Mac OS 9 and KanjiTalk (Japanese). For a high-level overview and the backstory, see the launch blog post and subsequent ones.

Development

This project uses Git LFS, ensure that the LFS tooling is installed before cloning the repo.

This project uses submodules, use git clone --recursive https://github.com/mihaip/infinite-mac.git to clone it (or run git submodule update --init --recursive if you have an existing checkout).

Common development tasks, all done via npm run:

  • start: Run local dev server (will be running at http://localhost:3127). Depends on dependencies being installed and built.
  • import-emulator <emulator>: Copy generated WebAssembly from an emulator submodule (only necessary if modifying the emulator cores, see below for how to rebuild them). The following emulators are supported:
  • import-disks: Build disk images for serving. Copies base OS images for the above emulators, and imports other software (found in Library/) into an "Infinite HD" disk image. Chunks disk images and generates a manifest for serving. This requires the macOS versions of Basilisk II and Mini vMac to be installed, since they are used as part of the image building process.
  • import-cd-roms: Build CD-ROM library (actual CD-ROMs are hosted on archive.org and other sites, the library contains metadata)
  • import-library: Build downloads library (actual downloads are hosted on macintoshgarden.org and other sites, the library contains metadata)

Common deployment tasks (also done via npm run)

  • build: Rebuild for either local use (in the build/ directory) or for Cloudflare Worker use
  • preview: Serve built assets locally using Vite's server (will be running at https://localhost:4127)
  • worker-dev: Preview built assets in a local Cloudflare Worker (requires a separate build invocation, result will be running at http://localhost:3128)
  • worker-deploy: Deploy built assets to the live version of the Cloudflare Worker (requires a separate build invocation)
  • sync-disks: Sync disk images to a Cloudflare R2 bucket. Should be done after disks are rebuilt with import-disks (and before worker-deploy).

Dependencies

Dependencies can be installed with:

npm install
pip3 install -r requirements.txt
npm run build-xadmaster
sudo -v ; curl https://rclone.org/install.sh | sudo bash

Supporting data files need to be generated with:

npm run import-disks
npm run import-cd-roms

Building the emulators

Basilisk II, SheepShaver, Mini vMac and DingusPPC are the original 68K and PowerPC emulators that enable this project. They are hosted in separate repos and are included via Git submodules. Rebuilding them is only required when making changes to the emulator core, the generated files are in src/emulator and included in the Git repository.

To begin, ensure that you have a Docker image built with the Emscripten toolchain and supporting libraries:

docker build -t macemu_emsdk .

Open a shell into the Docker container:

docker run --rm -it \
    -v `realpath macemu`:/macemu \
    -v `realpath minivmac`:/minivmac \
    -v `realpath dingusppc`:/dingusppc \
    -v `realpath previous`:/previous \
    --entrypoint bash macemu_emsdk

Once in that container, you can use a couple of helper scripts to build them:

Basilisk II

cd /macemu/BasiliskII/src/Unix
# Bootstrap Basilisk II, to generate the CPU emulator code
./_embootstrap.sh
# Switch into building for WASM
./_emconfigure.sh
# Actually compile Basilisk II targeting WASM
make -j8

Once it has built, use npm run import-emulator basiliskii from the host to update the files in src/emulator.

SheepShaver

cd /macemu/SheepShaver/src/Unix
# Configure for building for WASM
./_emconfigure.sh
# Actually compile SheepShaver targeting WASM
make -j8

Once it has built, use npm run import-emulator sheepshaver from the host to update the files in src/emulator.

Mini vMac

See this page for the full set set of build options (and this one for more estoeric ones).

cd /minivmac
# Configure for building for WASM
./emscripten_setup.sh
# This configures the Mac Plus model by default, alternative outputs can be
# configured with additional arguments:
# - `-m 128K -speed z`: Mac 128K (uses 1x speed by default to be more realistic)
# - `-m 512Ke`: Mac 512ke
# - `-m SE`: Mac SE
# - `-m II`: Mac II
# Actually compile Mini vMac targeting WASM
make -j8

Once it has built, use npm run import-emulator minivmac-<model> from the host to update the files in src/emulator.

DingusPPC

cd /dingusppc
mkdir -p build
cd build
emcmake cmake -DCMAKE_BUILD_TYPE=Release ..
make dingusppc -j8

Once it has built, use npm run import-emulator dingusppc from the host to update the files in src/emulator.

Previous

cd /previous
mkdir -p build
cd build
emcmake cmake -DCMAKE_BUILD_TYPE=Release -DENABLE_RENDERING_THREAD=0 ..
make previous -j8

Once it has built, use npm run import-emulator previous from the host to update the files in src/emulator.