diff --git a/lignumis/prototypes/compatibility/k2so.lua b/lignumis/prototypes/compatibility/k2so.lua
index 88637a9..ac1affb 100644
--- a/lignumis/prototypes/compatibility/k2so.lua
+++ b/lignumis/prototypes/compatibility/k2so.lua
@@ -2,6 +2,52 @@ local Technology = require("__cf-lib__/data/Technology")
 
 if not mods["Krastorio2-spaced-out"] then return end
 
+local data_util = require("__Krastorio2-spaced-out__/data-util")
+
+data:extend({
+    {
+        type = "tool",
+        name = "gold-tech-card",
+        localised_description = { "item-description.science-pack" },
+        icon = Lignumis.graphics .. "technology/lig-gold-science-pack-tech.png",
+        icon_size = 128,
+        subgroup = "science-pack",
+        order = "b09[gold-tech-card]",
+        stack_size = 200,
+        weight = 1 * kg,
+        durability = 1,
+        durability_description_key = "description.science-pack-remaining-amount-key",
+        durability_description_value = "description.science-pack-remaining-amount-value",
+        default_import_location = "lignumis"
+    }
+})
+
+data_util.make_tech_card("gold-tech-card", {
+    { type = "item", name = "gold-plate", amount = 10 },
+    { type = "item", name = "gold-cable", amount = 10 }
+})
+
+data:extend({
+    {
+        type = "technology",
+        name = "gold-tech-card",
+        icon = Lignumis.graphics .. "technology/lig-gold-science-pack-tech.png",
+        icon_size = 128,
+        unit = {
+            time = 45,
+            count = 500,
+            ingredients = {
+                { "production-science-pack", 1 },
+                { "utility-science-pack", 1 }
+            }
+        },
+        prerequisites = { "gold-fluid-handling", "utility-science-pack" },
+        effects = {
+            { type = "unlock-recipe", recipe = "gold-tech-card" }
+        }
+    }
+})
+
 data.raw.recipe["burner-inserter"].ingredients = {
     { type = "item", name = "wooden-gear-wheel", amount = 1 },
     { type = "item", name = "lumber",            amount = 1 }
@@ -41,4 +87,58 @@ if settings.startup["kr-realistic-weapons"].value then
     pistol_attack.ammo_category = nil
     table.insert(pistol_attack.ammo_categories, "bullet")
     data.raw.recipe["firearm-magazine"].enabled = false
-end
\ No newline at end of file
+end
+
+if settings.startup["lignumis-technology-progression"].value
+    and settings.startup["lignumis-k2so-gold-tech-card"].value
+then
+    for _, technology in pairs(data.raw.technology) do
+        if technology.unit
+            and technology.unit.ingredients
+            and not technology.lignumis_skip_science_packs
+            and not table.contains(Lignumis.science_blacklist, technology.name)
+            and not table.contains(Lignumis.science_pack_whitelist, technology.name)
+        then
+            local has_whitelisted_pack = false
+            local has_wood_pack = false
+            local has_steam_pack = false
+
+            for _, ingredient in pairs(technology.unit.ingredients) do
+                local ingredient_name = ingredient[1] or ingredient.name
+
+                if ingredient_name == "wood-science-pack" then
+                    has_wood_pack = true
+                elseif ingredient_name == "steam-science-pack" then
+                    has_steam_pack = true
+                elseif table.contains(Lignumis.science_pack_whitelist, ingredient_name) then
+                    has_whitelisted_pack = true
+                end
+            end
+
+            if has_whitelisted_pack and has_wood_pack and has_steam_pack then
+                local ingredients = {}
+
+                for _, ingredient in pairs(technology.unit.ingredients) do
+                    local ingredient_name = ingredient[1] or ingredient.name
+
+                    if ingredient_name ~= "wood-science-pack" and ingredient_name ~= "steam-science-pack" then
+                        table.insert(ingredients, ingredient)
+                    end
+                end
+
+                table.insert(ingredients, { "gold-tech-card", 1 })
+                technology.unit.ingredients = ingredients
+
+                if technology.prerequisites and not table.contains(technology.prerequisites, "gold-tech-card") then
+                    table.insert(technology.prerequisites, "gold-tech-card")
+                end
+            end
+        end
+    end
+
+    for _, lab in pairs(data.raw.lab) do
+        if lab.inputs and not table.contains(Lignumis.lab_blacklist, lab.name) and not table.contains(lab.inputs, "gold-tech-card") then
+            table.insert(lab.inputs, "gold-tech-card")
+        end
+    end
+end