Which uses libc via CGO or parses /etc/passwd with no CGO, which won't work for some cases. https://github.com/tailscale/tailscale/blob/e4144230f410204aa2f43a0

Which uses libc via CGO or parses /etc/passwd with no CGO, which won't work for some cases. https://github.com/tailscale/tailscale/blob/e4144230f410204aa2f43a07a57182c751239597/util/osuser/user.go#L144-L148 https://github.com/tailscale/tailscale/blob/e4144230f410204a... // userLookupGetent uses "getent" to look up users so that even with static // tailscaled binaries without cgo (as we distribute), we can still look up // PAM/NSS users which the standard library's os/user without cgo won't get // (because of no libc hooks). If "getent" fails, userLookupGetent falls back // to the standard library.