Add notice in README for snap package, it might be troublesome

README.md

@@ -177,6 +177,11 @@ _Note: The `ffsend` `snap` package is isolated, and can only access files in
 your home directory. Choose a different installation option if you don't want
 this limitation._
 
+_Note: due to how `snap` is configured by default, you won't be able to use the
+package from some contexts such as through SSH without manual modifications. If
+you're experiencing problems, please refer to a different installation method
+such as the [prebuilt binaries](#linux-prebuilt-binaries), or open an issue._
+
 [» `ffsend`][snapcraft-ffsend]
 
 ```bash

SECURITY.md

@@ -12,6 +12,7 @@ To report a vulnerability in this project, or in one if it's dependency;
 please [open](https://gitlab.com/timvisee/ffsend/issues/new) a new issue
 on GitLab (or on [GitHub](https://github.com/timvisee/ffsend/issues/new)) describing the situation.
 
-For confidential issues, you may send an email to the main developer (@timvisee) at: `3a4fb3964f@sinenomine.email`
+For confidential issues, you may send an email to the main developer (@timvisee) at: `3a4fb3964f@sinenomine.email`  
+Or see other methods of contacting over on: [timvisee.com/contact](https://timvisee.com/contact)
 
 To contribute code for fixing a vulnerability, please refer to the [contribution](./CONTRIBUTING.md) document.