User home directory variable (Containers)

I would like to request that VS Code Remote - Containers abstract away the platform-specific absolute path to the user home directory within a devcontainer.json variable. The current examples in the docs reference both the *nix and Windows environment variables:

"remoteEnv": { "LOCAL_USER_PATH": "${localEnv:HOME}${localEnv:USERPROFILE}" }

However, this approach is not foolproof, as it makes the assumption that HOME is always unset on Windows. When opening VS Code via Git Bash on Windows, for example, that assumption does not hold true, causing the value of the LOCAL_USER_PATH environment variable above to be the concatenation of the *nix and Windows absolute paths: /c/Users/jdoeC:\\Users\\jdoe

Instead, I would like VS Code Remote - Containers to provide a new built-in variable such as ${localUserHome} that always contains the absolute path to the user home directory appropriate to the platform regardless of shell or environment:

• *nix: /home/jdoe
• Mac OS: /Users/jdoe
• Windows: %SYSTEMDRIVE%\Users\jdoe

Start with the Variables in devcontainer.json reference and the existing remoteEnv example. Trace how variable substitution is handled for devcontainer.json, then verify that a new local-home variable resolves to the platform-appropriate path under Unix, macOS, Windows, and Git Bash; the issue is done when those cases no longer require concatenating HOME and USERPROFILE.