SpareChange is also available as a web app here!

Usage: sparechange [options] <id>
Options:
  -b, --beta           Whether to fetch a beta Sparebeat map
  -m, --music string   Path to a local .mp3 audio file to use
  -p, --path string    Path to a local Sparebeat map JSON file

• Go (v1.24.5 or higher)
• TinyGo: For building the WebAssembly module, optional (v0.39.0 or higher)
  • binaryen: Required on Windows for WebAssembly builds

$ go build -o bin/SpareChange ./cmd/cli

# Copy the images folder to the web directory
$ cp -r internal/assets/images web/

# Build the WebAssembly module
$ GOOS=js GOARCH=wasm tinygo build -o web/main.wasm -no-debug ./cmd/wasm

• Sparebeat (beta version)
• osu!
• Sparebeat Map Editor
• Sparebeat Map Format
• .osu file format specification
• osu-parser

not comprehensive at all, just a rough list for now

• Fetch Sparebeat map from both beta and stable
• Parse Sparebeat map JSON
• Convert Sparebeat map to an osu!mania beatmap
• Create a .osz file with the converted map and audio
• Properly convert Sparebeat BPM & speed changes to osu!mania SV
• Allow local Sparebeat maps to be converted
• Allow osu!mania beatmaps to be converted into Sparebeat maps