Get redshift-gtk working correctly

config/redshift.conf

@@ -4,4 +4,3 @@ temp-night=3000
 transition=1
 brightness-day=1.0
 brightness-night=0.8
-provider=manual

config/systemd/user/redshift-gtk.service.d/override.conf

@@ -0,0 +1,5 @@
+[Service]
+ExecStart=
+ExecStart=/home/me/.redshift-gtk-wrapper
+SyslogIdentifier=
+SyslogIdentifier=redshift-gtk

config/systemd/user/redshift.service.d/override.conf

@@ -1,3 +1,5 @@
 [Service]
 ExecStart=
 ExecStart=/home/me/.redshift-wrapper
+SyslogIdentifier=
+SyslogIdentifier=redshift

redshift-gtk-wrapper

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -o errexit
+
+main() {
+  export REDSHIFT_EXE=redshift-gtk
+  exec ~/.redshift-wrapper "${@}"
+}
+
+main "${@}"

redshift-wrapper

@@ -2,7 +2,7 @@
 set -o errexit
 
 main() {
-  exec redshift -l "$(__get_lat_lon)" -v
+  exec "${REDSHIFT_EXE:-redshift}" -l "$(__get_lat_lon)" -v
 }
 
 __get_lat_lon() {