diff --git a/README.md b/README.md
index 24d26fb..397602d 100644
--- a/README.md
+++ b/README.md
@@ -1,32 +1,46 @@
-# prawo-jazdy-resources
+# db-prawo-jazdy
 
-`db/main.py` is an *extremely* badly-written script that reads files (`pytania.csv` and `punkty.csv`) published by the Ministry of Infrastructure and imports them into a database
-- `db/pytania.csv` is the `katalog_pytania_egzminacyjne_kandydat__14112024.xlsx` file from [here](https://www.gov.pl/web/infrastruktura/prawo-jazdy), opened in Libreoffice Calc and saved as csv
-- `db/punkty.csv` isn't published by the Ministry, so you have to send a freedom of information request to acquire it; it is processed the same way as `pytania.csv`
+### Slightly modified version of [prawo-jazdy-resources](https://git.mandarynki.eu/maciej/prawo-jazdy-resources) by [maciej](https://git.mandarynki.eu/maciej), to suit the needs of [nuxt-prawo-jazdy](https://git.mandarynki.eu/netman/nuxt-prawo-jazdy)
+
+### Files summary
+
+`main.py` is an _extremely_ badly-written script that reads files (`pytania.csv` and `punkty.csv`) shared by the Ministry of Infrastructure and imports them into a postgresql database
+
+- `db/pytania.csv` is the `katalog_pytania_egzminacyjne_kandydat__14112024.xlsx` file from [here](https://www.gov.pl/web/infrastruktura/prawo-jazdy)
+- `db/punkty.csv` isn't published by the Ministry, so you have to send a public information request to acquire it - we have received an XLSX
+  both of them are converted to CSV
+
+# Requirements
+
+- postgres server
+- python3
+- packages from requirements.txt (`pip install -r requirements.txt`)
+- files above (either already CSV'd from this repo or converted by yourself from official, most probably fresher sources)
+
+### Database structure
 
-The database structure is as follows: 
 ```sql
-CREATE TABLE tasks (
+CREATE TABLE IF NOT EXISTS tasks (
     id integer NOT NULL,
-    correct_answer boolean,
+    correct_answer character(5),
     media_url text,
     weight smallint
 );
 
-CREATE TABLE questions (
+CREATE TABLE IF NOT EXISTS questions (
     task_id integer,
     lang character(2),
     text text
 );
 
-CREATE TABLE tasks_advanced (
+CREATE TABLE IF NOT EXISTS tasks_advanced (
     id integer NOT NULL,
     correct_answer character(1),
     media_url text,
     weight smallint
 );
 
-CREATE TABLE questions_advanced (
+CREATE TABLE IF NOT EXISTS questions_advanced (
     task_id integer,
     lang character(2),
     text text,
@@ -35,34 +49,89 @@ CREATE TABLE questions_advanced (
     answer_c text
 );
 
-CREATE TABLE categories (
+CREATE TABLE IF NOT EXISTS categories (
     name text,
     task_id integer
 );
 ```
 
-The basic tasks can be queried like so:
+## Criteria
+
+Categories are as such:
+
+- A
+- B
+- C
+- D
+- T
+- AM
+- A1
+- A2
+- B1
+- C1
+- D1
+- PT
+
+Languages as such:
+
+- PL
+- EN
+- UA
+- DE
+
+# Basic tasks query
+
+According to the Ministry of Infrastructure, in an exam there are (basic):
+
+- 4 questions for 1 point
+- 6 questions for 2 points
+- 10 questions for 3 points
+  so NO_OF_QUESTIONS and WEIGHT_OF_QUESTIONS should be set accordingly to the requirements above (and of course set category & lang to your liking)
+
 ```sql
-SELECT tasks.correct_answer, tasks.media_url, tasks.weight, questions.text
+SELECT
+    tasks.id,
+    tasks.correct_answer,
+    tasks.media_url,
+    tasks.weight,
+    questions.text
 FROM tasks
     LEFT JOIN questions ON tasks.id = questions.task_id
     LEFT JOIN categories ON tasks.id = categories.task_id
 WHERE
     categories.name = 'B' AND
-    questions.lang = 'PL'
+    questions.lang = 'PL' AND
+    tasks.weight = WEIGHT_OF_QUESTIONS
 ORDER BY random()
-LIMIT (20);
+LIMIT (NO_OF_QUESTIONS);
 ```
-And the advanced tasks like this:
+
+# Advanced tasks query
+
+According to the Ministry of Infrastructure, in an exam there are (advanced):
+
+- 2 questions for 1 point
+- 4 questions for 2 points
+- 6 questions for 3 points
+  so NO_OF_QUESTIONS and WEIGHT_OF_QUESTIONS should be set accordingly to the requirements above (and of course set category & lang to your liking)
+
 ```sql
-SELECT tasks_advanced.correct_answer, tasks_advanced.media_url, tasks_advanced.weight,
-       questions_advanced.text, questions_advanced.answer_a, questions_advanced.answer_b, questions_advanced.answer_c
+SELECT
+    tasks_advanced.id,
+    tasks_advanced.correct_answer,
+    tasks_advanced.media_url,
+    tasks_advanced.weight,
+    questions_advanced.text,
+    questions_advanced.answer_a,
+    questions_advanced.answer_b,
+    questions_advanced.answer_c
 FROM tasks_advanced
     LEFT JOIN questions_advanced ON tasks_advanced.id = questions_advanced.task_id
     LEFT JOIN categories ON tasks_advanced.id = categories.task_id
 WHERE
     categories.name = 'B' AND
-    questions_advanced.lang = 'PL'
+    questions_advanced.lang = 'PL' AND
+    tasks_advanced.weight = WEIGHT_OF_QUESTIONS
 ORDER BY random()
-LIMIT (20);
-```
\ No newline at end of file
+LIMIT (NO_OF_QUESTIONS);
+```
diff --git a/db/main.py b/main.py
similarity index 79%
rename from db/main.py
rename to main.py
index e3e08cb..44423a8 100644
--- a/db/main.py
+++ b/main.py
@@ -1,10 +1,21 @@
-import csv
+import csv, psycopg2, pwinput
 from tqdm import tqdm
-import psycopg2
 
-conn = psycopg2.connect('host=10.16.32.107 user=maciej password=maciej dbname=egzamin')
+host = input('host: ')
+user = input('user: ')
+password = pwinput.pwinput(prompt='password: ')
+dbname = input('dbname: ')
+port = int(input('port: '))
+
+conn = psycopg2.connect(host=host, user=user, password=password, dbname=dbname, port=port)
 cur = conn.cursor()
 
+cur.execute('CREATE TABLE IF NOT EXISTS tasks (id integer NOT NULL, correct_answer character(5), media_url text, weight smallint);')
+cur.execute('CREATE TABLE IF NOT EXISTS questions (task_id integer, lang character(2), text text);')
+cur.execute('CREATE TABLE IF NOT EXISTS tasks_advanced (id integer NOT NULL, correct_answer character(1), media_url text, weight smallint);')
+cur.execute('CREATE TABLE IF NOT EXISTS questions_advanced (task_id integer, lang character(2), text text, answer_a text, answer_b text, answer_c text);')
+cur.execute('CREATE TABLE IF NOT EXISTS categories (name text, task_id integer);')
+
 cur.execute('TRUNCATE TABLE tasks;')
 cur.execute('TRUNCATE TABLE questions;')
 cur.execute('TRUNCATE TABLE categories;')
@@ -44,11 +55,11 @@ with open('pytania.csv') as file:
 
         if numer and pytanie_pl and poprawna_odp and kategorie and not odp_a_pl and not odp_b_pl and not odp_c_pl:
             if poprawna_odp == 'Tak':
-                correct_answer = True
+                correct_answer = 'true'
             elif poprawna_odp == 'Nie':
-                correct_answer = False
+                correct_answer = 'false'
             else:
-                raise Exception('zjebało się')
+                raise Exception('Error, an answer to a basic question does not equal "Tak" or "Nie", check the pytania.csv file for anomaly in poprawna_odp section')
 
             cur.execute('INSERT INTO tasks (id, correct_answer, media_url) VALUES (%s, %s, %s)',
                         (task_id, correct_answer, media))
diff --git a/db/punkty.csv b/punkty.csv
similarity index 100%
rename from db/punkty.csv
rename to punkty.csv
diff --git a/db/pytania.csv b/pytania.csv
similarity index 100%
rename from db/pytania.csv
rename to pytania.csv
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..e0f2e8f
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,4 @@
+tqdm
+psycopg2-binary
+pwinput
+csv