diff --git a/cf-lib/changelog.txt b/cf-lib/changelog.txt
index ae8b83d..4b31875 100644
--- a/cf-lib/changelog.txt
+++ b/cf-lib/changelog.txt
@@ -1,35 +1,4 @@
 ---------------------------------------------------------------------------------------------------
-Version: 0.0.14
-Date: 10.06.2025
-  Changes:
-    Add :merge
----------------------------------------------------------------------------------------------------
-Version: 0.0.13
-Date: 23.05.2025
-  Changes:
-    Add Item class
----------------------------------------------------------------------------------------------------
-Version: 0.0.12
-Date: 06.04.2025
-  Changes:
-    Add table.count
----------------------------------------------------------------------------------------------------
-Version: 0.0.11
-Date: 28.03.2025
-  Changes:
-    - Add Technology:setIngredients
----------------------------------------------------------------------------------------------------
-Version: 0.0.10
-Date: 16.03.2025
-  Changes:
-    - Recipe: addIngredient amount defaults to 1
-    - Functions are chainable
----------------------------------------------------------------------------------------------------
-Version: 0.0.9
-Date: 28.02.2025
-  Bug Fixes:
-    - Rename `table.concat` to `table.concatTables` to resolve conflict
----------------------------------------------------------------------------------------------------
 Version: 0.0.8
 Date: 28.02.2025
   Changes:
diff --git a/cf-lib/data/Item.lua b/cf-lib/data/Item.lua
deleted file mode 100644
index 1cfffcf..0000000
--- a/cf-lib/data/Item.lua
+++ /dev/null
@@ -1,60 +0,0 @@
---- Utility class for a single item
---- @class Item
-local Item = {}
-
---- Pass an item name or an item table to get a Item object
---- @param value string|table The name of the item or the item table
-function Item:new(value)
-    local name
-    local item
-
-    if type(value) == "string" then
-        name = value
-        item = data.raw.item[name]
-        if not item then
-            log("Item not found: " .. name)
-            return nil
-        end
-    elseif type(value) == "table" then
-        name = value.name
-        item = value
-    end
-
-    local obj = {
-        prototype = item
-    }
-
-    setmetatable(obj, self)
-    self.__index = self
-    return obj
-end
-
---- Applies the item to the game
-function Item:apply()
-    data:extend({ self.prototype })
-end
-
---- Assigns data to the item
---- Shorthand for table.assign(item.prototype, data)
---- @param data table The data to assign
-function Item:assign(data)
-    table.assign(self.prototype, data)
-    return self
-end
-
---- Deeply merges data with the item
---- Shorthand for table.merge(item.prototype, data)
---- @param data table The data to merge
-function Item:merge(data)
-    table.merge(self.prototype, data)
-    return self
-end
-
---- Sets the weight of the item calculated from given count per rocket.
---- @param count number The amount of items that fit into a rocket
-function Item:itemsPerRocket(count)
-    self.prototype.weight = (1000 / count) * kg
-    return self
-end
-
-return Item
\ No newline at end of file
diff --git a/cf-lib/data/Recipe.lua b/cf-lib/data/Recipe.lua
index 6eca2b6..52e453b 100644
--- a/cf-lib/data/Recipe.lua
+++ b/cf-lib/data/Recipe.lua
@@ -1,9 +1,9 @@
---- Utility class for a single recipe
---- @class Recipe
+---- Utility class for a single recipe
+---- @class Recipe
 local Recipe = {}
 
---- Pass a recipe name or a recipe table to get a Recipe object
---- @param value string|table The name of the recipe or the recipe table
+---- Pass a recipe name or a recipe table to get a Recipe object
+---- @param value string|table The name of the recipe or the recipe table
 function Recipe:new(value)
     local name
     local recipe
@@ -29,32 +29,22 @@ function Recipe:new(value)
     return obj
 end
 
---- Applies the recipe to the game
+---- Applies the recipe to the game
 function Recipe:apply()
     data:extend({ self.prototype })
 end
 
---- Assigns data to the recipe
---- Shorthand for table.assign(recipe.prototype, data)
---- @param data table The data to assign
+---- Assigns data to the recipe
+---- Shorthand for table.assign(recipe.prototype, data)
+---- @param data table The data to assign
 function Recipe:assign(data)
     table.assign(self.prototype, data)
-    return self
-end
-
---- Deeply merges data with the recipe
---- Shorthand for table.merge(recipe.prototype, data)
---- @param data table The data to merge
-function Recipe:merge(data)
-    table.merge(self.prototype, data)
-    return self
 end
 
 --- Adds an ingredient to the recipe
 --- @param ingredientName string The name of the ingredient
---- @param amount number The amount of the ingredient (default: 1)
+--- @param amount number The amount of the ingredient
 function Recipe:addIngredient(ingredientName, amount)
-    amount = amount or 1
     local ingredientType = data.raw.item[ingredientName] and "item"
         or data.raw.module[ingredientName] and "item"
         or data.raw.fluid[ingredientName] and "fluid"
@@ -70,11 +60,10 @@ function Recipe:addIngredient(ingredientName, amount)
             ingredient.amount_min = nil
             ingredient.amount_max = nil
             ingredient.probability = nil
-            return self
+            return
         end
     end
     table.insert(self.prototype.ingredients, { name = ingredientName, amount = amount, type = ingredientType })
-    return self
 end
 
 --- Replaces an existing ingredient by name with a new ingredient or adjusts the amount
@@ -91,11 +80,10 @@ function Recipe:replaceIngredient(old, new, amount)
             if result.name == old then
                 result.name = new
                 result.amount = amount or result.amount
-                return self
+                return
             end
         end
     end
-    return self
 end
 
 --- Removes an existing ingredient by name
@@ -105,11 +93,10 @@ function Recipe:removeIngredient(ingredientName)
         for i, result in pairs(self.prototype.ingredients) do
             if result.name == ingredientName then
                 self.prototype.ingredients[i] = nil
-                return self
+                return
             end
         end
     end
-    return self
 end
 
 --- Replaces an existing result by name with a new result
@@ -134,7 +121,6 @@ function Recipe:replaceResult(old, new, amount, expensiveAmount)
             table.main_product = new
         end
     end
-    return self
 end
 
 --- Adds the recipe to a technology
@@ -149,15 +135,14 @@ function Recipe:unlockedByTechnology(technology)
     end
     for _, effect in pairs(technology.effects) do
         if effect.type == "unlock-recipe" and effect.recipe == self.prototype.name then
-           return self
+            return
         end
     end
     table.insert(technology.effects, { type = "unlock-recipe", recipe = self.prototype.name })
-    return self
 end
 
---- Clones the recipe
---- @param name string The name of the new recipe
+---- Clones the recipe
+---- @param name string The name of the new recipe
 function Recipe:clone(name)
     local clone = table.deepcopy(self.prototype)
     clone.name = name
diff --git a/cf-lib/data/Technology.lua b/cf-lib/data/Technology.lua
index 13a1dd9..2c641d5 100644
--- a/cf-lib/data/Technology.lua
+++ b/cf-lib/data/Technology.lua
@@ -47,22 +47,12 @@ end
 --- @param data table The data to assign
 function Technology:assign(data)
     table.assign(self.prototype, data)
-    return self
-end
-
---- Deeply merges data with the technology
---- Shorthand for table.merge(technology.prototype, data)
---- @param data table The data to merge
-function Technology:merge(data)
-    table.merge(self.prototype, data)
-    return self
 end
 
 --- Sets the prerequisite for the technology
 --- @param prerequisites table The names of the prerequisites
 function Technology:setPrerequisites(prerequisites)
     self.prototype.prerequisites = prerequisites
-    return self
 end
 
 --- Adds a prerequisite to the technology
@@ -73,7 +63,6 @@ function Technology:addPrerequisite(prerequisite)
     if (not table.contains(self.prototype.prerequisites, _prerequisite)) then
         table.insert(self.prototype.prerequisites, _prerequisite)
     end
-    return self
 end
 
 --- Adds multiple prerequisites to the technology
@@ -86,7 +75,6 @@ function Technology:addPrerequisites(prerequisites)
             table.insert(self.prototype.prerequisites, _prerequisite)
         end
     end
-    return self
 end
 
 --- Replaces a prerequisite in a technology
@@ -100,7 +88,6 @@ function Technology:replacePrerequisite(old, new)
             self.prototype.prerequisites[i] = _new
         end
     end
-    return self
 end
 
 --- Removes a prerequisite from the technology
@@ -110,10 +97,9 @@ function Technology:removePrerequisite(prerequisite)
     for i, techPrerequisite in pairs(self.prototype.prerequisites) do
         if techPrerequisite == _prerequisite then
             table.remove(self.prototype.prerequisites, i)
-            return self
+            return
         end
     end
-    return self
 end
 
 --- Adds an ingredient to the technology
@@ -123,7 +109,6 @@ function Technology:addIngredient(ingredientName, amount)
     self.prototype.unit = self.prototype.unit or { ingredients = {} }
     self.prototype.unit.ingredients = self.prototype.unit.ingredients or {}
     table.insert(self.prototype.unit.ingredients, { ingredientName, amount or 1 })
-    return self
 end
 
 --- Adds a list of ingredients to the technology with the default amount of 1
@@ -132,7 +117,6 @@ function Technology:addIngredients(ingredientNames)
     for _, ingredientName in pairs(ingredientNames) do
         self:addIngredient(ingredientName)
     end
-    return self
 end
 
 --- Removes an existing ingredient by name
@@ -145,16 +129,6 @@ function Technology:removeIngredient(ingredientName)
             end
         end
     end
-    return self
-end
-
---- Sets the ingredients for the technology
---- @param ingredientNames table The names of the ingredients
-function Technology:setIngredients(ingredients)
-    self.prototype.unit = self.prototype.unit or {}
-    self.prototype.unit.ingredients = {}
-    self:addIngredients(ingredients)
-    return self
 end
 
 --- Adds a recipe unlock to the technology
@@ -162,18 +136,16 @@ end
 function Technology:addRecipe(recipeName)
     for _, effect in pairs(self.prototype.effects) do
         if effect.type == "unlock-recipe" and effect.recipe == recipeName then
-            return self
+            return
         end
     end
     table.insert(self.prototype.effects, { type = "unlock-recipe", recipe = recipeName })
-    return self
 end
 
 --- Adds an effect to the technology
 --- @param effect table The effect to add
 function Technology:addEffect(effect)
     table.insert(self.prototype.effects, effect)
-    return self
 end
 
 --- Removes a recipe unlock from the technology
@@ -182,10 +154,9 @@ function Technology:removeRecipe(recipeName)
     for i, effect in pairs(self.prototype.effects) do
         if effect.type == "unlock-recipe" and effect.recipe == recipeName then
             table.remove(self.prototype.effects, i)
-            return self
+            return
         end
     end
-    return self
 end
 
 --- Clones the technology
diff --git a/cf-lib/info.json b/cf-lib/info.json
index c22dbfa..0eb9de6 100644
--- a/cf-lib/info.json
+++ b/cf-lib/info.json
@@ -1,6 +1,6 @@
 {
    "name": "cf-lib",
-   "version": "0.0.14",
+   "version": "0.0.8",
    "title": "cackling fiends library",
    "description": "Because I'd like to have my own library :-)",
    "author": "cackling fiend",
diff --git a/cf-lib/util/table.lua b/cf-lib/util/table.lua
index 865d683..0e8f32b 100644
--- a/cf-lib/util/table.lua
+++ b/cf-lib/util/table.lua
@@ -74,7 +74,7 @@ end
 --- @param table1 table The first table
 --- @param table2 table The second table
 --- @return table The concatenated table
-function table.concatTables(table1, table2)
+function table.concat(table1, table2)
     local result = {}
     for _, v in pairs(table1) do
         table.insert(result, v)
@@ -92,15 +92,4 @@ function table.trim(target)
     return table.filter(target, function(v)
         return v ~= nil
     end)
-end
-
---- Counts the entries of given table.
---- @param target table Table to count
---- @return number Amount of entries
-function table.count(target)
-    local count = 0
-    for _ in pairs(target) do
-        count = count + 1
-    end
-    return count
 end
\ No newline at end of file