Lemongrab

Self hosting has the advantage of keeping your encrypted vault local and under your control.

Self-boting is against ToS. You have to be careful when interacting with the Discord API. Maybe there is a way to run the discord website to fetch text messages.

Generally, I think it is better to use a general server OS like Debian or Fedora instead of something specialized like Proxmox or Unraid. That way you can always choose the way you want to use your server instead of being channeled into running it a specific way (especially if you ever change your mind).

That is not how security works. You must protect against known and unknown attack vectors. I am only pointing out weaknesses of Docker and other linux containers that share the kernel with the host or/and run with Root. I’m not saying anything original or crazy, just read up on the security of these technologies and their limits. I am not a malware designer, I am a security researcher.

Look into gVisor and Kata Containers for info on how to improve the security of containers.

Here are some readings for you:

https://redlib.tux.pizza/r/docker/comments/eakd50/help_can_i_safely_run_malware_inside_a_container/
https://www.csoonline.com/article/1303004/vulnerabilities-in-docker-other-container-engines-enable-host-os-access.html
https://www.panoptica.app/research/7-ways-to-escape-a-container
https://blog.trailofbits.com/2019/07/19/understanding-docker-container-escapes/
https://www.securityweek.com/leaky-vessels-container-escape-vulnerabilities-impact-docker-others/
https://www.cybereason.com/blog/container-escape-all-you-need-is-cap-capabilities

It is not speculation, it is reducing attack surface. Security is preemptive. Docker/Podman are not strong isolation solutions. Rare does not mean we shouldn’t protect against the chance of kernel vulnerabilities. The linux kernel around 30 million lines of code long and written in a memory unsafe language. Code isn’t safe just because we dont know the vulnerabilities, this is basic cybersec reasoning.

Idk how to decide what is safe or not, but as a warning, Docker containers can escape trivially and have access to the kernel.