aptly vs CPAN

aptly manages Debian package repositories and publishes controlled package sets for systems that use apt. It can mirror remote repositories, maintain local repositories, pull selected package versions with dependencies, and publish repositories. Immutable snapshots can be compared, merged, filtered, searched and used to create repeatable package environments with controlled changes and rollback to earlier versions. Mirroring supports regular and flat repositories over HTTP(S) and FTP, with filters for architectures, components and packages. Packages from mirrors and local repositories are kept in a deduplicated pool that can be searched and cleaned up. Repositories can be published to local storage, Amazon S3, OpenStack Swift, Azure or JFrog Artifactory Storage, and signed with a user-provided GnuPG key. aptly is free and available as a CLI tool and HTTP REST service. Its REST API has no authentication or protection, and the embedded web server is described as unsuitable for production use.

CPAN is a free archive of Perl software and documentation, with ways to find, download, and install modules. Its homepage lists 33,464,960 modules in 47,830 distributions from 14,750 authors; the archive has been online since October 1995. Visitors can search through MetaCPAN or browse modules, authors, and recent uploads. Modules can be installed with CPAN.pm, and manual installation instructions are available. Dependencies can require other modules, a particular version, or a C compiler. The site also provides Perl source archives and instructions for compiling and installing Perl. Authors submit uploads through PAUSE, which inspects, validates, and indexes them before they propagate to CPAN and its mirrors. For existing package namespaces, PAUSE indexes uploads only from the owner or an authorized maintainer. Its documentation says uploaded modules are tested across dozens of architectures by CPAN Testers. The Ports page lists Perl support for over 100 platforms, including Windows, macOS, and Linux. CPAN is backed by a CDN. The FAQ says CPAN handles questions about its own operation, not debugging users’ code.