diff --git a/cf-lib/changelog.txt b/cf-lib/changelog.txt
index e8398e4..a8ccbc2 100644
--- a/cf-lib/changelog.txt
+++ b/cf-lib/changelog.txt
@@ -1,4 +1,73 @@
 ---------------------------------------------------------------------------------------------------
+Version: 1.2.0
+Date: 14.12.2025
+  Changes:
+    - Add class Entity
+---------------------------------------------------------------------------------------------------
+Version: 1.1.0
+Date: 12.12.2025
+  Changes:
+    - Add Item:defaultImportLocation
+    - Add Recipe:addCategory
+  Bug Fixes:
+    - Settings.force also sets default_value
+---------------------------------------------------------------------------------------------------
+Version: 1.0.0
+Date: 23.11.2025
+  Changes:
+    - Add table.filterKey
+    - Add class Settings
+    - Add Recipe:removeResult
+    - Add Recipe:addResult
+---------------------------------------------------------------------------------------------------
+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:
+    - Add table.trim
+---------------------------------------------------------------------------------------------------
+Version: 0.0.7
+Date: 26.02.2025
+  Changes:
+    - Add table.concat
+  Bug Fixes:
+    - Bugfix in Recipe
+---------------------------------------------------------------------------------------------------
+Version: 0.0.6
+Date: 15.02.2025
+  Bug Fixes:
+    - Bugfix in table.removeValue
+---------------------------------------------------------------------------------------------------
 Version: 0.0.5
 Date: 15.02.2025
   Changes:
diff --git a/cf-lib/data/Entity.lua b/cf-lib/data/Entity.lua
new file mode 100644
index 0000000..4a21072
--- /dev/null
+++ b/cf-lib/data/Entity.lua
@@ -0,0 +1,29 @@
+--- Utility class for entity prototype definitions
+--- @class Entity
+local Entity = {}
+
+--- Generates a selection box definition using width and height of the entity in tiles.
+--- @param width number The width of the entity in tiles
+--- @param height number The height of the entity in tiles
+--- @return table A table containing the selection box definition
+Entity.selectionBox = function(width, height)
+    return {
+        { -width / 2, -height / 2 },
+        { width / 2, height / 2 }
+    }
+end
+
+--- Generates a collision box definition using width and height of the entity in tiles.
+--- @param width number The width of the entity in tiles
+--- @param height number The height of the entity in tiles
+--- @param margin number The margin to apply to the collision box compared to the selection box (default: 0.3)
+--- @return table A table containing the collision box definition
+Entity.collisionBox = function(width, height, margin)
+    margin = margin or 0.1
+    return {
+        { -width / 2 + margin, -height / 2 + margin },
+        { width / 2 - margin, height / 2 - margin }
+    }
+end
+
+return Entity
\ No newline at end of file
diff --git a/cf-lib/data/Item.lua b/cf-lib/data/Item.lua
new file mode 100644
index 0000000..5934a72
--- /dev/null
+++ b/cf-lib/data/Item.lua
@@ -0,0 +1,67 @@
+--- 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
+
+--- Sets the default import location for space platforms
+--- @param planetName string The name of the planet
+function Item:defaultImportLocation(planetName)
+    self.prototype.default_import_location = planetName
+    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 17ba8c0..213aa14 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
@@ -11,16 +11,15 @@ function Recipe:new(value)
     if type(value) == "string" then
         name = value
         recipe = data.raw.recipe[name]
+        if not recipe then
+            log("Recipe not found: " .. name)
+            return nil
+        end
     elseif type(value) == "table" then
         name = value.name
         recipe = value
     end
 
-    if not recipe then
-        log("Recipe not found: " .. name)
-        return nil
-    end
-
     local obj = {
         prototype = recipe
     }
@@ -30,22 +29,32 @@ 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
+--- @param amount number The amount of the ingredient (default: 1)
 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"
@@ -61,10 +70,11 @@ function Recipe:addIngredient(ingredientName, amount)
             ingredient.amount_min = nil
             ingredient.amount_max = nil
             ingredient.probability = nil
-            return
+            return self
         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
@@ -81,33 +91,71 @@ function Recipe:replaceIngredient(old, new, amount)
             if result.name == old then
                 result.name = new
                 result.amount = amount or result.amount
-                return
+                return self
             end
         end
     end
+    return self
 end
 
 --- Removes an existing ingredient by name
 --- @param ingredientName string The name of the ingredient
 function Recipe:removeIngredient(ingredientName)
     if self.prototype.ingredients then
-        for i, result in pairs(self.prototype.ingredients) do
-            if result.name == ingredientName then
-                self.prototype.ingredients[i] = nil
-                return
+        for i, ingredient in pairs(self.prototype.ingredients) do
+            if ingredient.name == ingredientName then
+                table.remove(self.prototype.ingredients, i)
+                return self
             end
         end
     end
+    return self
+end
+
+--- Adds a result to the recipe
+--- @param resultName string The name of the result
+--- @param amount number|table The amount of the result (default: 1) or a table with custom properties
+function Recipe:addResult(resultName, amount)
+    local props = amount
+    if type(props) == "string" then
+        props = { amount = props }
+    end
+    if not props.amount then
+        props.amount = 1
+    end
+    local resultType = data.raw.item[resultName] and "item"
+            or data.raw.module[resultName] and "item"
+            or data.raw.fluid[resultName] and "fluid"
+            or nil
+    if not resultType then
+        log("Unknown result: " .. resultName)
+        return
+    end
+    self.prototype.results = self.prototype.results or {}
+    for _, result in pairs(self.prototype.results) do
+        if result.name == resultName then
+            result.amount = nil
+            result.amount_min = nil
+            result.amount_max = nil
+            result.probability = nil
+            for k, v in pairs(props) do
+                result[k] = v
+            end
+            return self
+        end
+    end
+    props.name = resultName
+    props.type = resultType
+    table.insert(self.prototype.results, props)
+    return self
 end
 
 --- Replaces an existing result by name with a new result
 --- @param old string The name of the existing result
 --- @param new? string The name of the new result
 --- @param amount? number The amount of the new result (keeps the old value if not set)
---- @param expensiveAmount? number The amount of the new result for the expensive recipe (uses amount if not set)
-function Recipe:replaceResult(old, new, amount, expensiveAmount)
+function Recipe:replaceResult(old, new, amount)
     if type(new) == "number" then
-        expensiveAmount = amount
         amount = new
         new = old
     end
@@ -122,6 +170,32 @@ function Recipe:replaceResult(old, new, amount, expensiveAmount)
             table.main_product = new
         end
     end
+    return self
+end
+
+--- Removes an existing result by name
+--- @param resultName string The name of the result
+function Recipe:removeResult(resultName)
+    if self.prototype.results then
+        for i, result in pairs(self.prototype.results) do
+            if result.name == resultName then
+                table.remove(self.prototype.results, i)
+                return self
+            end
+        end
+    end
+    return self
+end
+
+--- Adds an additional crafting category
+--- @param categoryName string The name of the crafting category
+function Recipe:addCategory(categoryName)
+    local categories = self.prototype.additional_categories or {}
+    self.prototype.additional_categories = categories
+    if not table.contains(categories, categoryName) then
+        table.insert(categories, categoryName)
+    end
+    return self
 end
 
 --- Adds the recipe to a technology
@@ -136,18 +210,19 @@ 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
+           return self
         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
     return Recipe:new(clone)
 end
 
-return Recipe
\ No newline at end of file
+return Recipe
diff --git a/cf-lib/data/Technology.lua b/cf-lib/data/Technology.lua
index 2c641d5..13a1dd9 100644
--- a/cf-lib/data/Technology.lua
+++ b/cf-lib/data/Technology.lua
@@ -47,12 +47,22 @@ 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
@@ -63,6 +73,7 @@ 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
@@ -75,6 +86,7 @@ function Technology:addPrerequisites(prerequisites)
             table.insert(self.prototype.prerequisites, _prerequisite)
         end
     end
+    return self
 end
 
 --- Replaces a prerequisite in a technology
@@ -88,6 +100,7 @@ function Technology:replacePrerequisite(old, new)
             self.prototype.prerequisites[i] = _new
         end
     end
+    return self
 end
 
 --- Removes a prerequisite from the technology
@@ -97,9 +110,10 @@ function Technology:removePrerequisite(prerequisite)
     for i, techPrerequisite in pairs(self.prototype.prerequisites) do
         if techPrerequisite == _prerequisite then
             table.remove(self.prototype.prerequisites, i)
-            return
+            return self
         end
     end
+    return self
 end
 
 --- Adds an ingredient to the technology
@@ -109,6 +123,7 @@ 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
@@ -117,6 +132,7 @@ function Technology:addIngredients(ingredientNames)
     for _, ingredientName in pairs(ingredientNames) do
         self:addIngredient(ingredientName)
     end
+    return self
 end
 
 --- Removes an existing ingredient by name
@@ -129,6 +145,16 @@ 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
@@ -136,16 +162,18 @@ end
 function Technology:addRecipe(recipeName)
     for _, effect in pairs(self.prototype.effects) do
         if effect.type == "unlock-recipe" and effect.recipe == recipeName then
-            return
+            return self
         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
@@ -154,9 +182,10 @@ 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
+            return self
         end
     end
+    return self
 end
 
 --- Clones the technology
diff --git a/cf-lib/info.json b/cf-lib/info.json
index 72690c3..51dbeef 100644
--- a/cf-lib/info.json
+++ b/cf-lib/info.json
@@ -1,10 +1,10 @@
 {
    "name": "cf-lib",
-   "version": "0.0.5",
+   "version": "1.2.0",
    "title": "cackling fiends library",
    "description": "Because I'd like to have my own library :-)",
    "author": "cackling fiend",
-   "homepage": "",
+   "homepage": "https://discord.gg/ufvFUJtVwk",
    "factorio_version": "2.0",
    "dependencies": [
       "base"
diff --git a/cf-lib/settings/Settings.lua b/cf-lib/settings/Settings.lua
new file mode 100644
index 0000000..0f1ce40
--- /dev/null
+++ b/cf-lib/settings/Settings.lua
@@ -0,0 +1,39 @@
+--- Utility class for manipulating settings
+--- @class Settings
+local Settings = {}
+
+local settingTypes = { "bool-setting", "int-setting", "double-setting", "string-setting", "color-setting" }
+
+local function getSetting(name)
+    for _, settingType in pairs(settingTypes) do
+        local setting = data.raw[settingType][name]
+        if setting then return setting end
+    end
+    error("getSetting: Setting with name '" .. name .. "' not found.")
+end
+
+Settings.getSetting = getSetting
+
+function Settings.force(name, value)
+    local setting = getSetting(name)
+    setting.hidden = true
+    if setting.type == "bool-setting" or setting.type == "color-setting" then
+        setting.forced_value = value
+    else
+        setting.allowed_values = { value }
+        setting.default_value = value
+    end
+end
+
+function Settings.default(name, value)
+    local setting = getSetting(name)
+    setting.default_value = value
+end
+
+function Settings.forceDefault(name)
+    local setting = getSetting(name)
+    local value = setting.default_value
+    Settings.force(name, value)
+end
+
+return Settings
\ No newline at end of file
diff --git a/cf-lib/util/table.lua b/cf-lib/util/table.lua
index 1cdfc11..57c7fa2 100644
--- a/cf-lib/util/table.lua
+++ b/cf-lib/util/table.lua
@@ -46,7 +46,7 @@ end
 table.removeValue = function(target, value)
     for i, v in ipairs(target) do
         if v == value then
-            target.remove(target, i)
+            table.remove(target, i)
             return target
         end
     end
@@ -68,4 +68,51 @@ function table.filter(target, predicate)
         end
     end
     return result
+end
+
+--- Filters a table by removing given key.
+--- @param target table The table to filter
+--- @param key string The key to remove
+function table.filterKey(target, key)
+    return table.filter(
+            target,
+            function(_, currentKey)
+                return currentKey ~= key
+            end
+    )
+end
+
+--- Concatenates two tables into a new table.
+--- @param table1 table The first table
+--- @param table2 table The second table
+--- @return table The concatenated table
+function table.concatTables(table1, table2)
+    local result = {}
+    for _, v in pairs(table1) do
+        table.insert(result, v)
+    end
+    for _, v in pairs(table2) do
+        table.insert(result, v)
+    end
+    return result
+end
+
+--- Trims nil values from a table.
+--- @param target table The table to trim
+--- @return table The trimmed table
+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