diff --git a/.config/firejail/discord.local b/.config/firejail/discord.local
index c07791e..21ed307 100644
--- a/.config/firejail/discord.local
+++ b/.config/firejail/discord.local
@@ -1,3 +1,4 @@
+# vim: filetype=firejail
 # Make discord use xdg-desktop-portal to open links by pretending
 # we're running inside flatpak (eww).
 private-bin gdbus
diff --git a/.config/firejail/jdtls.profile.cgt b/.config/firejail/jdtls.profile.cgt
new file mode 100644
index 0000000..b5c895c
--- /dev/null
+++ b/.config/firejail/jdtls.profile.cgt
@@ -0,0 +1,7 @@
+# vim: filetype=firejail
+include whitelist-common.inc
+include allow-java.inc
+whitelist ~/.gradle
+whitelist ~/.eclipse
+whitelist ~/.cache/jdtls
+whitelist <% opt.dev_dir %>
diff --git a/.config/firejail/polymc.profile.cgt b/.config/firejail/polymc.profile.cgt
index 409a40d..e283a96 100644
--- a/.config/firejail/polymc.profile.cgt
+++ b/.config/firejail/polymc.profile.cgt
@@ -1,3 +1,4 @@
+# vim: filetype=firejail
 include whitelist-common.inc
 
 dbus-user filter
diff --git a/cg_opts.lua b/cg_opts.lua
index 70527e1..87440a6 100644
--- a/cg_opts.lua
+++ b/cg_opts.lua
@@ -38,4 +38,6 @@ opts.gamemode = {
     on_stop = "notify-send 'Gamemode' 'Gamemode Inactive'",
 }
 
+opts.dev_dir = os.getenv "HOME" .. "/dev"
+
 return opts