coc-settings.json

{
    "coc.preferences.timeout": 1000,
    "coc.preferences.noselect": true,
    "coc.preferences.formatOnType": false,
    "coc.preferences.jumpCommand": "edit",
    "coc.preferences.autoTrigger": "always",
    "coc.preferences.diagnostic.enable": true,
    "coc.preferences.diagnostic.signOffset": 500,
    "coc.preferences.triggerAfterInsertEnter": true,
    "coc.preferences.acceptSuggestionOnCommitCharacter": true,

    "coc.preferences.snippetIndicator": "►",
    "coc.preferences.diagnostic.infoSign": "",
    "coc.preferences.diagnostic.hintSign": "",
    "coc.preferences.diagnostic.errorSign": "",
    "coc.preferences.diagnostic.warningSign": "⚠",

    "flutter.trace.server": "verbose",
    "java.errors.incompleteClasspath.severity": "ignore",

    "languageserver": {
        "vala": {
            "command": "vala-language-server",
            "filetypes": ["vala"]
        },
        "cmake": {
            "command": "cmake-language-server",
            "filetypes": ["cmake"],
            "rootPatterns": [
                "build/"
            ],
            "initializationOptions": {
                "buildDirectory": "build"
            }
        }
    }
}