XLD is unsigned by the developer, meaning it cannot be opened in macOS without disabling Gatekeeper. Please register for an Apple developer account, sign the app, and re-release.
You don't have to disable it. Right click the app icon and choose open from a context menu. https://support.apple.com/en-us/HT202491 : "How to open an app from a unidentified developer and exempt it from Gatekeeper"
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You don't have to disable it. Right click the app icon and choose open from a context menu.
https://support.apple.com/en-us/HT202491 : "How to open an app from a unidentified developer and exempt it from Gatekeeper"
This is still an issue and got worse since Apple became more strict about non-signed and non-notarised applications.