Lock folder and allow specific application to access that folder in MAC and Linix

Hi there! I'm a full stack software engineer, with over 5+ years experience dealing with the different programming languages, and I can help you to work on this project since previously I have been working on the same projects for different clients on both backend and frontend, and this can be worked on less than 2 days. I understand how annoying it is and can get this fixed for you quickly! Android NodeJs (ExpressJs)- Tests mocha & semistandard Web scraping (Python & NodeJS) Javascript,JQuery, Ajax, HTML & HTML5,CSS,Wordpress etc Python and PostgreSQL programmer (Flask framework, alembic,flask-sqlalchemy, nose tests) Spring boot, spring cloud ,spring reactive, spring security (basic auth & OAuth 2.0) and reactive tests (My Base for Rest APIs) JUnit & Mockito Hibernate AWS SERVICES LIKE CF, RDS, SQS, Secret manager , s3 bucket etc Azure Flyway Docker Jenkins PHP-Native & Code-ignitor Python (Spider)-recommender systems (My master project) JAVAFX -gluon javafx, maven , jfoenix etc (My base for desktop applications) Database expert mysql, oracle, sql server, dynamo db, cosmos db , sqlite , PostgreSQL Oracle forms and reports phonegap apache hadoop (MapReduce) IReport

Hi, I am beginner, learning. I am interested to know more, I shall develop on linux. Please feel free to ping on chat for further information. Moatz