diff --git a/manager/config.lua b/manager/config.lua
index f6bed40..2df0147 100644
--- a/manager/config.lua
+++ b/manager/config.lua
@@ -46,6 +46,17 @@ C.COMPOST_HOPPER     = "minecraft:hopper_0"
 -- Peripheral
 C.PERIPHERAL_CACHE_TTL = 5
 
+-- Parallel scanning
+C.PARALLEL_SCAN_CHUNKS = 8
+
+-- Storage priority (higher = preferred; keyed by chest peripheral name)
+C.CHEST_PRIORITY = {}
+
+-- Builder / supply manifest
+C.SUPPLY_CHEST    = ""           -- peripheral name of supply chest (empty = disabled)
+C.SUPPLY_INTERVAL = 10           -- seconds between supply checks
+C.SUPPLY_MANIFEST = {}           -- { { name = "mod:item", count = N }, ... }
+
 -- Furnace types
 C.FURNACE_TYPES = {
     "minecraft:furnace",
@@ -92,6 +103,11 @@ function C.loadConfig()
     if cfg.compostReserve     then C.COMPOST_RESERVE      = cfg.compostReserve     end
     if cfg.compostDropper     then C.COMPOST_DROPPER      = cfg.compostDropper     end
     if cfg.compostHopper      then C.COMPOST_HOPPER       = cfg.compostHopper      end
+    if cfg.parallelScanChunks then C.PARALLEL_SCAN_CHUNKS = cfg.parallelScanChunks end
+    if cfg.chestPriority      then C.CHEST_PRIORITY       = cfg.chestPriority      end
+    if cfg.supplyChest        then C.SUPPLY_CHEST         = cfg.supplyChest        end
+    if cfg.supplyInterval     then C.SUPPLY_INTERVAL      = cfg.supplyInterval     end
+    if cfg.supplyManifest     then C.SUPPLY_MANIFEST      = cfg.supplyManifest     end
     if cfg.logLevel           then log.setLevel(cfg.logLevel)                      end
     log.info("CONFIG", "Loaded from %s", CONFIG_FILE)
 end
@@ -100,31 +116,36 @@ end
 -- Data tables
 -------------------------------------------------
 
-C.SMELTABLE        = dofile(_path("data/smeltable.lua"))
 C.FUEL_LIST        = dofile(_path("data/fuel.lua"))
 local _compostData = dofile(_path("data/compostable.lua"))
 C.COMPOSTABLE      = _compostData.items
 C.COMPOST_TRASH    = _compostData.trash
-C.CRAFTABLE        = dofile(_path("data/craftable.lua"))
 C.LOW_STOCK_ALERTS = dofile(_path("data/alerts.lua"))
 
--- Pre-build furnace compatibility sets for O(1) lookup
-for _, recipe in pairs(C.SMELTABLE) do
-    recipe.furnaceSet = {}
-    for _, ft in ipairs(recipe.furnaces) do
-        recipe.furnaceSet[ft] = true
-    end
-end
+-- Recipe book: merges built-in recipes + user-learned recipes
+local recipeBook   = dofile(_path("lib/recipeBook.lua"))
+recipeBook.init(_path(".recipes.db"))
+recipeBook.loadLegacyCrafting(dofile(_path("data/craftable.lua")))
+recipeBook.loadLegacySmelting(dofile(_path("data/smeltable.lua")))
+C.recipeBook = recipeBook
+C.SMELTABLE  = recipeBook.getSmeltingTable()
+C.CRAFTABLE  = recipeBook.getCraftingList()
 
--- Pre-built smelt candidate lists per furnace type
-C.smeltCandidatesByType = {}
-do
+-- Rebuild furnace/smelt indices from current recipe data
+function C.rebuildIndices()
+    for _, recipe in pairs(C.SMELTABLE) do
+        recipe.furnaceSet = {}
+        for _, ft in ipairs(recipe.furnaces) do
+            recipe.furnaceSet[ft] = true
+        end
+    end
+    C.smeltCandidatesByType = {}
     for _, ftype in ipairs(C.FURNACE_TYPES) do
         C.smeltCandidatesByType[ftype] = {}
     end
     for itemName, recipe in pairs(C.SMELTABLE) do
         local isFood = recipe.furnaceSet["minecraft:smoker"] or false
-        for ft, _ in pairs(recipe.furnaceSet) do
+        for ft in pairs(recipe.furnaceSet) do
             table.insert(C.smeltCandidatesByType[ft], { name = itemName, recipe = recipe, food = isFood })
         end
     end
@@ -136,6 +157,15 @@ do
     end
 end
 
+-- Refresh recipes from recipeBook and rebuild all indices
+function C.refreshRecipes()
+    C.SMELTABLE = C.recipeBook.getSmeltingTable()
+    C.CRAFTABLE = C.recipeBook.getCraftingList()
+    C.rebuildIndices()
+end
+
+C.rebuildIndices()
+
 -- Build fuel set for quick lookup
 C.FUEL_SET = {}
 for _, f in ipairs(C.FUEL_LIST) do C.FUEL_SET[f.name] = true end