Considerations about a slimmer container base image than Ubuntu

[ColorfulRhino]

Hello! Currently Ubuntu is used as base image for creating this container:

dnscrypt-server-docker/Dockerfile

Line 1 in 8ea0501

FROM ubuntu:24.04

The Ubuntu base image is pretty fat, meaning a larger attack surface, a bigger size (80MB vs for example Alpine with <10MB) as well as possibly slightly worse performance on resource-constrained systems like Raspberry Pi's (untested claim).
Have you considered using a slimmer base image like Alpine, Wolfi or Distroless (or even UBI)?

You switched from using Alpine to Ubuntu in 2019 because "Rust doesn't work well with musl-libc" (quote from the linked commit message). These issues seem to be largely resolved by now, there is also an official up-to-date Rust package in the Alpine package repository.
The other mentioned base images like Wolfi do not use musl altogether.