diff --git a/.github/workflows/luacheck.yml b/.github/workflows/luacheck.yml
deleted file mode 100644
index 3365b97..0000000
--- a/.github/workflows/luacheck.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-name: Luacheck
-
-on: [push, pull_request]
-
-jobs:
-
-  luacheck:
-    runs-on: ubuntu-20.04
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-    - name: Setup ‘lua’
-      uses: leafo/gh-actions-lua@v8
-      with:
-        luaVersion: 5.1
-    - name: Setup ‘luarocks’
-      uses: leafo/gh-actions-luarocks@v4
-    - name: Setup ‘luacheck’
-      run: luarocks install luacheck
-    - name: Run ‘luacheck’ linter
-      run: luacheck .
diff --git a/README.md b/README.md
index 4e8ec82..e59e834 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ This mod requires **Minetest 5.4+**
    - Progressive Mode¹
    - Quick Crafting
    - 3D Player Model Real-Time Preview
-   - Isometric Area Preview
+   - Isometric Map Preview
    - Inventory Sorting (+ options: compression, reverse mode, automation, etc.)
    - Item List Compression (**`moreblocks`** is supported)
    - Item Bookmarks
diff --git a/src/api.lua b/src/api.lua
index 0fda2fd..f899fa7 100644
--- a/src/api.lua
+++ b/src/api.lua
@@ -1,11 +1,10 @@
 local make_fs = i3.files.gui()
 
-local gmatch, split = i3.get("gmatch", "split")
-local S, err, fmt, reg_items = i3.get("S", "err", "fmt", "reg_items")
-local sorter, sort_inventory = i3.get("sorter", "sort_inventory")
-local sort, concat, copy, insert, remove = i3.get("sort", "concat", "copy", "insert", "remove")
-local true_str, true_table, is_str, is_func, is_table, clean_name =
-	i3.get("true_str", "true_table", "is_str", "is_func", "is_table", "clean_name")
+IMPORT("gmatch", "split")
+IMPORT("S", "err", "fmt", "reg_items")
+IMPORT("sorter", "sort_inventory")
+IMPORT("sort", "concat", "copy", "insert", "remove")
+IMPORT("true_str", "true_table", "is_str", "is_func", "is_table", "clean_name")
 
 function i3.register_craft_type(name, def)
 	if not true_str(name) then
diff --git a/src/bags.lua b/src/bags.lua
index e7b7793..0c7fe85 100644
--- a/src/bags.lua
+++ b/src/bags.lua
@@ -1,8 +1,7 @@
 local set_fs = i3.set_fs
-local ItemStack = ItemStack
-local S, ES, fmt, msg, slz, dslz = i3.get("S", "ES", "fmt", "msg", "slz", "dslz")
-local get_group, play_sound, get_detached_inv, create_inventory =
-	i3.get("get_group", "play_sound", "get_detached_inv", "create_inventory")
+
+IMPORT("S", "ES", "fmt", "msg", "slz", "dslz", "ItemStack")
+IMPORT("get_group", "play_sound", "get_detached_inv", "create_inventory")
 
 local function get_content(content)
 	local t = {}
diff --git a/src/caches.lua b/src/caches.lua
index 4e634fe..eec94bd 100644
--- a/src/caches.lua
+++ b/src/caches.lua
@@ -1,14 +1,9 @@
 local replacements = {fuel = {}}
 
-local ItemStack = ItemStack
-local draw_cube = core.inventorycube
-local fmt, reg_items, reg_aliases, reg_nodes = i3.get("fmt", "reg_items", "reg_aliases", "reg_nodes")
-local maxn, copy, insert, sort, match, sub = i3.get("maxn", "copy", "insert", "sort", "match", "sub")
-
-local is_group, extract_groups, item_has_groups, groups_to_items =
-	i3.get("is_group", "extract_groups", "item_has_groups", "groups_to_items")
-local true_str, true_table, is_table, valid_item, table_merge, table_replace, rcp_eq =
-	i3.get("true_str", "true_table", "is_table", "valid_item", "table_merge", "table_replace", "rcp_eq")
+IMPORT("maxn", "copy", "insert", "sort", "match", "sub")
+IMPORT("is_group", "extract_groups", "item_has_groups", "groups_to_items")
+IMPORT("fmt", "reg_items", "reg_aliases", "reg_nodes", "draw_cube", "ItemStack")
+IMPORT("true_str", "true_table", "is_table", "valid_item", "table_merge", "table_replace", "rcp_eq")
 
 local function get_burntime(item)
 	return core.get_craft_result{method = "fuel", items = {item}}.time
diff --git a/src/callbacks.lua b/src/callbacks.lua
index e2934be..6ee984f 100644
--- a/src/callbacks.lua
+++ b/src/callbacks.lua
@@ -1,19 +1,14 @@
 local _, get_inventory_fs = i3.files.gui()
-
 local set_fs = i3.set_fs
-local ItemStack = ItemStack
-local S, min, random = i3.get("S", "min", "random")
-local reg_items, reg_aliases = i3.get("reg_items", "reg_aliases")
-local fmt, find, match, sub, lower, split = i3.get("fmt", "find", "match", "sub", "lower", "split")
-local vec_eq, vec_round = i3.get("vec_eq", "vec_round")
-local sort, copy, insert, remove, indexof = i3.get("sort", "copy", "insert", "remove", "indexof")
 
-local msg, is_fav, pos_to_str, str_to_pos, add_hud_waypoint, play_sound, spawn_item =
-	i3.get("msg", "is_fav", "pos_to_str", "str_to_pos", "add_hud_waypoint", "play_sound", "spawn_item")
-local search, get_sorting_idx, sort_inventory, sort_by_category, get_recipes, get_detached_inv =
-	i3.get("search", "get_sorting_idx", "sort_inventory", "sort_by_category", "get_recipes", "get_detached_inv")
-local valid_item, get_stack, craft_stack, clean_name, compressible, check_privs, safe_teleport =
-	i3.get("valid_item", "get_stack", "craft_stack", "clean_name", "compressible", "check_privs", "safe_teleport")
+IMPORT("vec_eq", "vec_round")
+IMPORT("reg_items", "reg_aliases")
+IMPORT("S", "min", "random", "ItemStack")
+IMPORT("sort", "copy", "insert", "remove", "indexof")
+IMPORT("fmt", "find", "match", "sub", "lower", "split")
+IMPORT("msg", "is_fav", "pos_to_str", "str_to_pos", "add_hud_waypoint", "play_sound", "spawn_item")
+IMPORT("search", "get_sorting_idx", "sort_inventory", "sort_by_category", "get_recipes", "get_detached_inv")
+IMPORT("valid_item", "get_stack", "craft_stack", "clean_name", "compressible", "check_privs", "safe_teleport")
 
 local function reset_data(data)
 	data.filter        = ""
diff --git a/src/common.lua b/src/common.lua
index 035e3e3..73af003 100644
--- a/src/common.lua
+++ b/src/common.lua
@@ -624,6 +624,7 @@ local _ = {
 	msg = msg,
 
 	-- Misc. functions
+	ItemStack = ItemStack,
 	valid_item = valid_item,
 	spawn_item = spawn_item,
 	clean_name = clean_name,
@@ -636,6 +637,7 @@ local _ = {
 	slz = core.serialize,
 	dslz = core.deserialize,
 	ESC = core.formspec_escape,
+	draw_cube = core.inventorycube,
 	get_group = core.get_item_group,
 	pos_to_str = core.pos_to_string,
 	str_to_pos = core.string_to_pos,
diff --git a/src/compress.lua b/src/compress.lua
index 4b09706..e9a8629 100644
--- a/src/compress.lua
+++ b/src/compress.lua
@@ -1,4 +1,4 @@
-local fmt, copy, insert = i3.get("fmt", "copy", "insert")
+IMPORT("fmt", "copy", "insert")
 
 local wood_types = {
 	"acacia_wood", "aspen_wood", "junglewood", "pine_wood",
diff --git a/src/detached_inv.lua b/src/detached_inv.lua
index a8513bb..ede1fec 100644
--- a/src/detached_inv.lua
+++ b/src/detached_inv.lua
@@ -1,5 +1,5 @@
 local set_fs = i3.set_fs
-local fmt, play_sound, create_inventory = i3.get("fmt", "play_sound", "create_inventory")
+IMPORT("fmt", "play_sound", "create_inventory")
 
 local trash = create_inventory("i3_trash", {
 	allow_put = function(_, _, _, stack)
diff --git a/src/groups.lua b/src/groups.lua
index 88a9c7f..4ffff92 100644
--- a/src/groups.lua
+++ b/src/groups.lua
@@ -1,4 +1,4 @@
-local S = i3.get("S")
+IMPORT("S")
 
 i3.group_stereotypes = {
 	dye = "dye:white",
diff --git a/src/gui.lua b/src/gui.lua
index 073bfe9..3655660 100644
--- a/src/gui.lua
+++ b/src/gui.lua
@@ -1,26 +1,21 @@
-local damage_enabled = core.settings:get_bool "enable_damage"
+local damage_enabled = core.settings:get_bool"enable_damage"
 
 local model_aliases = i3.files.model_alias()
 local PNG, styles, fs_elements, colors = i3.files.styles()
 
-local ItemStack = ItemStack
+local sprintf = string.format
 local VoxelArea, VoxelManip = VoxelArea, VoxelManip
 
-local S, ES, translate = i3.get("S", "ES", "translate")
-local clr, ESC, check_privs = i3.get("clr", "ESC", "check_privs")
-local vec_new, vec_sub, vec_round = i3.get("vec_new", "vec_sub", "vec_round")
-local min, max, floor, ceil, round = i3.get("min", "max", "floor", "ceil", "round")
-local sprintf, find, match, sub, upper = i3.get("fmt", "find", "match", "sub", "upper")
-local reg_items, reg_tools, reg_entities = i3.get("reg_items", "reg_tools", "reg_entities")
-local maxn, sort, concat, copy, insert, remove, unpack =
-	i3.get("maxn", "sort", "concat", "copy", "insert", "remove", "unpack")
-
-local true_str, is_fav, is_num, get_group, str_to_pos =
-	i3.get("true_str", "is_fav", "is_num", "get_group", "str_to_pos")
-local groups_to_items, compression_active, compressible =
-	i3.get("groups_to_items", "compression_active", "compressible")
-local get_sorting_idx, is_group, extract_groups, item_has_groups =
-	i3.get("get_sorting_idx", "is_group", "extract_groups", "item_has_groups")
+IMPORT("clr", "ESC", "check_privs")
+IMPORT("find", "match", "sub", "upper")
+IMPORT("vec_new", "vec_sub", "vec_round")
+IMPORT("S", "ES", "translate", "ItemStack")
+IMPORT("min", "max", "floor", "ceil", "round")
+IMPORT("reg_items", "reg_tools", "reg_entities")
+IMPORT("groups_to_items", "compression_active", "compressible")
+IMPORT("true_str", "is_fav", "is_num", "get_group", "str_to_pos")
+IMPORT("maxn", "sort", "concat", "copy", "insert", "remove", "unpack")
+IMPORT("get_sorting_idx", "is_group", "extract_groups", "item_has_groups")
 
 local function fmt(elem, ...)
 	if not fs_elements[elem] then
diff --git a/src/hud.lua b/src/hud.lua
index 9bb302b..da6441d 100644
--- a/src/hud.lua
+++ b/src/hud.lua
@@ -1,5 +1,4 @@
-local get_player_by_name, str_to_pos, add_hud_waypoint =
-	i3.get("get_player_by_name", "str_to_pos", "add_hud_waypoint")
+IMPORT("get_player_by_name", "str_to_pos", "add_hud_waypoint")
 
 local function init_hud(player)
 	local name = player:get_player_name()
diff --git a/src/operators.lua b/src/operators.lua
index 3320fea..f1cb3cd 100644
--- a/src/operators.lua
+++ b/src/operators.lua
@@ -36,6 +36,10 @@ local operators = {
 }
 
 local function compile(data)
+	data = data:gsub("IMPORT%((.-)%)", function(a)
+		return "local " .. a:gsub("\"", "") .. " = i3.get(" .. a .. ")"
+	end)
+
 	for op, func in pairs(operators) do
 		data = data:gsub("(" .. var .. "+)%s?" .. op .. "%s?(" .. var .. "*)", func)
 	end
diff --git a/src/progressive.lua b/src/progressive.lua
index 7c8acde..e3a5141 100644
--- a/src/progressive.lua
+++ b/src/progressive.lua
@@ -1,13 +1,10 @@
 local set_fs = i3.set_fs
 local hud_notif = i3.hud_notif
-
-local fmt, search, table_merge, array_diff =
-	i3.get("fmt", "search", "table_merge", "array_diff")
-local is_group, extract_groups, item_has_groups, apply_recipe_filters =
-	i3.get("is_group", "extract_groups", "item_has_groups", "apply_recipe_filters")
-
 local POLL_FREQ = 0.25
 
+IMPORT("fmt", "search", "table_merge", "array_diff")
+IMPORT("is_group", "extract_groups", "item_has_groups", "apply_recipe_filters")
+
 local function get_filtered_items(player, data)
 	local items, known, c = {}, 0, 0