Cleaned up the repo and added Teensy 4.1 to the Crush project library

.gitignore

@@ -6,14 +6,17 @@
 *.bak
 *.bck
 *.kicad_pcb-bak
+*.kicad_sch-bak
 *.sch-bak
+*.DS_Store
 *~
 _autosave-*
 *.tmp
 *-save.pro
 *-save.kicad_pcb
 fp-info-cache
 fp-lib-table
+sym-lib-table
 
 # Netlist files (exported from Eeschema)
 *.net
@@ -27,5 +30,5 @@ fp-lib-table
 *.csv
 
 # backups folder
-crush-pcb-backups/
+crush-main-board-backups/
 

crush-main-board.kicad_prl

@@ -0,0 +1,78 @@
+{
+  "board": {
+    "active_layer": 0,
+    "active_layer_preset": "All Layers",
+    "auto_track_width": true,
+    "hidden_netclasses": [],
+    "hidden_nets": [],
+    "high_contrast_mode": 0,
+    "net_color_mode": 1,
+    "opacity": {
+      "images": 0.6,
+      "pads": 1.0,
+      "tracks": 1.0,
+      "vias": 1.0,
+      "zones": 0.6
+    },
+    "ratsnest_display_mode": 0,
+    "selection_filter": {
+      "dimensions": true,
+      "footprints": true,
+      "graphics": true,
+      "keepouts": true,
+      "lockedItems": true,
+      "otherItems": true,
+      "pads": true,
+      "text": true,
+      "tracks": true,
+      "vias": true,
+      "zones": true
+    },
+    "visible_items": [
+      0,
+      1,
+      2,
+      3,
+      4,
+      5,
+      8,
+      9,
+      10,
+      11,
+      12,
+      13,
+      15,
+      16,
+      17,
+      18,
+      19,
+      20,
+      21,
+      22,
+      23,
+      24,
+      25,
+      26,
+      27,
+      28,
+      29,
+      30,
+      32,
+      33,
+      34,
+      35,
+      36,
+      39,
+      40
+    ],
+    "visible_layers": "fffffff_ffffffff",
+    "zone_display_mode": 0
+  },
+  "meta": {
+    "filename": "crush-pcb.kicad_prl",
+    "version": 3
+  },
+  "project": {
+    "files": []
+  }
+}