home: use signal-desktop from unstable

(this has no actual benefit but i messed up and now the database can't
downgrade itself)

1 files changed, 1 insertions, 0 deletions

diff --git a/home/unstable.nix b/home/unstable.nix
index 6a8a839..af4d9c5 100644
--- a/home/unstable.nix
+++ b/home/unstable.nix
@@ -11,5 +11,6 @@ with import inputs.nixpkgs-unstable {inherit system; };
     elixir_1_12
     elixir_ls
     thunderbird
+    signal-desktop
   ];
 }