Superscopes: Local, global... is there any more?
summary
Implemented a template class called installation_local that embeds a single shared variable into the installer so multiple installed apps can increment and read it without a daemon or explicit IPC; it’s used across three apps to count audio samples processed and is serialized on install and destroyed on uninstall. Proposes higher scopes: login-local per user, machine-local per machine install, cloud-local company-wide persistent scope; those latter ideas remain speculative.
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