GODT-1516 GODT-1451: KeepassXC is crashing on start. We need to block it until it's fixed.

README.md

@@ -56,7 +56,9 @@ You need to have a keychain in order to run the ProtonMail Bridge. On Mac or
 Windows, Bridge uses native credential managers. On Linux, use `secret-service` freedesktop.org API
 (e.g. [Gnome keyring](https://wiki.gnome.org/Projects/GnomeKeyring/))
 or
-[pass](https://www.passwordstore.org/).
+[pass](https://www.passwordstore.org/). We are working on allowing other secret
+services (e.g. KeepassXC), but for now only gnome-keyring is usable without
+major problems.
 
 
 ## Environment Variables

pkg/keychain/helper_linux.go

@@ -35,7 +35,7 @@ const (
 func init() { // nolint[noinit]
 	Helpers = make(map[string]helperConstructor)
 
-	if isUsable(newSecretServiceHelper("")) {
+	if _, err := exec.LookPath("gnome-keyring"); err == nil && isUsable(newSecretServiceHelper("")) {
 		Helpers[SecretService] = newSecretServiceHelper
 	}