> How do I manage my code without a “package manager”? [...] Through manual dependency management.

Slackware Linux does precisely that.

I'm a Slackware user. Slackware does have a package manager that can install or remove packages, and even a frontend that can use repositories (slackpkg), but it does have manual dependency resolution. Sure, there are 3rd-party managers that can add dependency resolution, but they do not come with the distro as default.

This is a very personal opinion, but manual dependency management is a feature. Back in the day, I remember installing Mandrake Linux 9.2 and activating the (then new-ish) framebuffer console. The distro folks had no better idea than to force a background "9.2" image on framebuffer consoles, which I hated. I finally found the package responsible for that. Removing it with urpmi, however, meant removing all the graphical desktop components (including X11) because that stupid package was listed as a dependency of everything graphical.

That prompted me to seek alternatives to Mandrake and ended up using Slackware. Its simplicity had the added bonus of offering manual dependency resolution.

Sounds like "alias dpkg=dpkg --force-depends"?