diff --git a/constants.py b/constants.py
index 784aaf7..63a7ed6 100644
--- a/constants.py
+++ b/constants.py
@@ -24,17 +24,18 @@
 boundaries_md_path = "./data/boundaries_md.json"
 workflows_path = '.github/workflows'
 
-# folderpaths:
+# data folderpaths:
 improper_geoms_folderpath = 'data/improper_geoms'
 disjointed_folderpath = 'data/disjointed'
 versioning_folderpath = 'data/versioning'
 other_footways_folderpath = 'data/other_footways'
+tiles_folderpath = 'data/tiles'
 
 other_footways_subcatecories = {
     'stairways' : {'highway':['steps']},
-    'main' : {'highway':['footway','living_street'],'foot':['designated'],'footway': ['alley','path','yes']},
-    'potential' : {'highway':['path','track']},
-    'informal' : {'foot':['yes','permissive']},
+    'main_footways' : {'highway':['footway','living_street'],'foot':['designated'],'footway': ['alley','path','yes']},
+    'potential_footways' : {'highway':['path','track']},
+    'informal_footways' : {'foot':['yes','permissive']},
     'pedestrian_areas' : {} #defined only by geometry type (Polygon,Multipolygon)
 }
 
@@ -80,7 +81,7 @@
 valid_values_path = 'quality_check/valid_tag_values.json'
 
 # node homepage:
-user_basepage_url = f'https://{USERNAME}.github.io/'.astype('string')
+user_basepage_url = f'https://{USERNAME}.github.io/'
 node_homepage_url = f'https://{USERNAME}.github.io/{REPO_NAME}/'
 data_updating_url = f'https://{USERNAME}.github.io/{REPO_NAME}/data/data_updating.html'
 
@@ -117,8 +118,8 @@
 # paths for other_footways subcategories:
 for subcategory in other_footways_subcatecories:
     subcategory_path = os.path.join(other_footways_folderpath, subcategory+data_format)
-    paths_dict['other_footways_subcategories'][subcategory] = subcategory
-    paths_dict['map_layers'][subcategory] = subcategory
+    paths_dict['other_footways_subcategories'][subcategory] = subcategory_path
+    paths_dict['map_layers'][subcategory] = subcategory_path
 
 
 # max radius to cut off unconnected crossings and kerbs
diff --git a/data_quality/check_wiki_keys.py b/data_quality/check_wiki_keys.py
index 02cbcfe..3acb3a5 100644
--- a/data_quality/check_wiki_keys.py
+++ b/data_quality/check_wiki_keys.py
@@ -1,8 +1,6 @@
 import sys
 sys.path.append('oswm_codebase')
 from functions import *
-# from constants import *
-
 
 tags_dict = read_json('quality_check/feature_keys.json')
 
diff --git a/generation/vec_tiles_gen.py b/generation/vec_tiles_gen.py
new file mode 100644
index 0000000..3b77846
--- /dev/null
+++ b/generation/vec_tiles_gen.py
@@ -0,0 +1,22 @@
+import sys
+sys.path.append('oswm_codebase')
+from functions import *
+import subprocess
+
+docker_img = 'ghcr.io/osgeo/gdal:alpine-normal-latest'
+
+create_folder_if_not_exists(tiles_folderpath)
+
+
+print(paths_dict)
+
+layers_dict = paths_dict['map_layers']
+
+for layername in layers_dict:
+
+    outpath = os.path.join(tiles_folderpath,layername+'.pmtiles')
+
+    runstring = f'docker run --rm -v ./data:/data {docker_img} ogr2ogr -f PMTiles {outpath} {layers_dict[layername]} -dsco MINZOOM={TILES_MIN_ZOOM} -dsco MAXZOOM={TILES_MAX_ZOOM} -progress'
+
+    print(runstring)
+
diff --git a/other/templates/config.py b/other/templates/config.py
index 2b95112..3104e70 100644
--- a/other/templates/config.py
+++ b/other/templates/config.py
@@ -29,9 +29,15 @@
     -49.1843181999999999  # EASTERNMOST  LONGITUDE
     )
 
-# Set a midpoint for the map:
+# Set a midpoint for the map AND A Z LEVEL FOR THE INITIAL ZOOM:
 MID_LAT = -25.46075
 MID_LGT = -49.26135
+INITIAL_Z_LEVEL = 19
+
+# MIN AND MAX ZOOM LEVELS FOR TILE GENERATION:
+# (since there's the 100MB file size limit, for big datasets might be better to stay at 19 or even 18)
+TILES_MIN_ZOOM = 12
+TILES_MAX_ZOOM = 20
 
 
 ### MORE DELICATE ONES: (leave them unchanged by default)
@@ -45,4 +51,4 @@
 OTHER_FOOTWAY_RULES = {'highway':['footway','steps','living_street','pedestrian','track','path'],'foot':['yes','designated','permissive'],'footway': ['alley','path','yes']}
 
 # since we download all features containing the tags of the previous rule-set, if there's another tag hierarchically above, we should exclude those features:
-OTHER_FOOTWAY_EXCLUSION_RULES = {'highway': ['trunk','motorway','primary','secondary','trunk_link','motorway_link','primary_link'],'access':['no','private']}
\ No newline at end of file
+OTHER_FOOTWAY_EXCLUSION_RULES = {'highway': ['trunk','motorway','primary','secondary','trunk_link','motorway_link','primary_link'],'access':['no','private']}
diff --git a/other/templates/copy_config.sh b/other/templates/copy_config.sh
new file mode 100644
index 0000000..6857c3b
--- /dev/null
+++ b/other/templates/copy_config.sh
@@ -0,0 +1 @@
+cp oswm_codebase/other/templates/config.py config.py
\ No newline at end of file
diff --git a/special_updates.py b/special_updates.py
index cc67048..f7cee7a 100644
--- a/special_updates.py
+++ b/special_updates.py
@@ -1,6 +1,6 @@
 # from constants import *
 from functions import *
-from shutil import rmtree, copytree
+from shutil import rmtree, copytree, copy
 
 """
 script reserved for eventual modifications that shall happen on all nodes
@@ -10,6 +10,9 @@
 rmtree(workflows_path,ignore_errors=True)
 copytree('./oswm_codebase/workflows',workflows_path)
 
+# copying requirements.txt:
+copy('./oswm_codebase/requirements.txt','./requirements.txt')
+
 # resetting the boundaries:
 remove_if_exists(boundaries_path)
 remove_if_exists(boundaries_md_path)
diff --git a/workflows/data_daily_updating.yml b/workflows/data_daily_updating.yml
index 5fcddf8..b6f40ec 100644
--- a/workflows/data_daily_updating.yml
+++ b/workflows/data_daily_updating.yml
@@ -54,6 +54,8 @@ jobs:
       
       - run: python oswm_codebase/filtering_adapting_data.py
 
+      - run: python oswm_codebase/generation/vec_tiles_gen.py
+
       - run: python oswm_codebase/create_webmap.py
 
       - run: python oswm_codebase/data_quality/tag_values_checking.py