Universal modpack format by false :)

dependency.manifesto.packbrew.jsonc

{
    "formatVersion": "1.0.0-alpha.1",

    "id": "lambdabettergrass",
    "meta": {
        "name": "LambdaBetterGrass",
        "latest": "1.0.1",
        "authors": [
            {
                "name": "LambdAurora",
                // any URL, ideally points to the author profile on the dependency source platform
                "link": "https://example-gui.com/user/LambdAurora"
            }
        ]
    },

    // Same as modpacks
    "versions": [
        {
            "version": "1.0.1",
            // Unix timestamp for non-semver versions
            "timestamp": "1607020005",
            // dependency.packbrew.json
            "source": "https://example-api.com/mod/lambdabettergrass/1.0.1?format=packbrew"
        }
    ]
}

dependency.packbrew.jsonc

{
    "formatVersion": "1.0.0-alpha.1",

    "id": "lambdabettergrass",
    "meta": {
        "name": "LambdaBetterGrass",
        "version": "1.0.1",
        "authors": [
            {
                "name": "LambdAurora",
                // any URL, ideally points to the author profile on the dependency source platform
                "link": "https://example-gui.com/user/LambdAurora"
            }
        ],
        // dependency.manifesto.packbrew.json
        "source": "https://example-api.com/mod/lambdabettergrass?format=packbrew"
    },

    "files": [
        {
            "primary": true,
            "filename": "mods/lambdabettergrass-1.0.1.jar",
            "download": "https://example-cdn.com/mod/lambdabettergrass/1.0.1/lambdabettergrass-1.0.1.jar",
            "hash": {
                "sha1": "<hash>"
            }
        }
    ],

    // Different from modpack
    "components": {
        "fabric": {
            "loaderVersion": ">=0.7.0"
        },
        "minecraft": "1.16.x"
    },

    // Similar to modpack
    "dependencies": [
        {
            "id": "fabric-api",
            "meta": {
                "name": "Fabric API",
                "version": "*",
                "authors": [
                    {
                        "name": "Fabric Team",
                        "link": "https://example-gui.com/team/FabricTeam"
                    }
                ],
                "source": "https://example-api.com/mod/fabric-api?format=packbrew"
            }
        }
    ]
}

modpack.manifesto.packbrew.jsonc

{
    "formatVersion": "1.0.0-alpha.1",

    "meta": {
        "name": "Example Modpack",
        "latest": "1.0.0",
        "authors": [
            {
                "name": "falseresync"
            }
        ]
    },

    "versions": [
        {
            "version": "1.0.0",
            // Unix timestamp for non-semver versions
            "timestamp": "1607020005",
            // modpack.packbrew.json
            "source": "https://example-api.com/modpack/example-modpack/1.0.0?format=packbrew"
        },
        {
            "version": "1.0.0-beta.1",
            "timestamp": "1606520071",
            "source": "https://example-api.com/modpack/example-modpack/1.0.0-beta.1?format=packbrew"
        }
    ]
}

modpack.packbrew.jsonc

{
    "formatVersion": "1.0.0-alpha.1",

    "id": "example-modpack",
    "meta": {
        "name": "Example Modpack",
        "version": "1.0.0",
        "authors": [
            {
                "name": "falseresync"
            }
        ],
        // modpack.manifesto.packbrew.json
        "source": "https://example-api.com/modpack/example-modpack?format=packbrew"
    },

    // Format-defined requirements
    "components": [
        {
            "id": "forge",
            "version": "35.1.0",
            // Conditions in Minecraft model "when" block format
            "conditions": [
                {
                    "platform": "curseforge"
                }
            ]
        },
        {
            "id": "fabric",
            // Meta fields are component-specific
            "loaderVersion": "0.10.8",
            "intermediaryVersion": "1.16.4",
            "conditions": [
                {
                    "NOT": {
                        "platform": "curseforge"
                    }
                }
            ]
        },
        {
            "id": "minecraft",
            "version": "1.16.4"
        }
    ],

    // User-defined requirements
    "dependencies": [
        {
            "id": "lambdabettergrass",
            // Same as in fabric.mod.json
            "environment": "client",
            "meta": {
                "name": "LambdaBetterGrass",
                "version": "1.0.1",
                "authors": [
                    {
                        "name": "LambdAurora",
                        // any URL, ideally points to the author profile on the dependency source platform
                        "link": "https://example-gui.com/user/LambdAurora"
                    }
                ],
                "source": "https://example-api.com/mod/lambdabettergrass?format=packbrew"
            },
            "files": [
                {
                    "filename": "mods/lambdabettergrass-1.0.1.jar",
                    "download": "https://example-cdn.com/mod/lambdabettergrass/1.0.1/lambdabettergrass-1.0.1.jar",
                    "hash": {
                        "sha1": "<hash>"
                    }
                }
            ],
            "requirements": {
                "components": {
                    "fabric": {
                        "loaderVersion": ">=0.7.0"
                    },
                    "minecraft": "1.16.x"
                },
                "dependencies": {
                    "fabric-api": ">=0.18.0"
                }
            }
        },
        {
            "id": "fabric-api",
            "meta": {
                "name": "Fabric API",
                "version": "0.27.1+1.16",
                "authors": [
                    {
                        "name": "FabricMC",
                        "link": "https://github.com/FabricMC"
                    }
                ],
                // Format for non-compliant sources
                "nonCompliantSource": true,
                "source": {
                    "type": "github",
                    // Source-specific fields
                    "repo": "FabricMC/fabric",
                    "release": "0.27.1+1.16"
                }
            },
            "files": [
                {
                    "filename": "mods/fabric-api-0.27.1+1.16.jar",
                    "download": "https://github.com/FabricMC/fabric/releases/download/0.27.1+1.16/fabric-api-0.27.1+1.16.jar",
                    "hash": {
                        "sha1": "<hash>"
                    }
                }
            ]
        }
    ]
}