Include the ipfs file.

.includes/gamemode.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+run_with_optional_gamemode() {
+    if command -v gamemoderun &> /dev/null; then
+        gamemoderun "$@"
+    else
+        "$@"
+    fi
+}

.includes/ipfs.sh

@@ -0,0 +1,7 @@
+# shellcheck shell=bash disable=SC2034,SC2154
+# Central repository for IPFS game download URLs
+
+declare -Ag ipfs=(
+    # Games (alphabetical order)
+    [FreeDoom]="${ipfsGateway}/ipfs/QmU6REFot8CGVSBy2YWQxnmXoh7M4EF74RxFtLzvtJxoGC?filename=toby_doom_9.0_full.zip"
+)