https://www.otreehub.com/ Forum (address questions) https://otree.readthedocs.io/en/latest/install.html Install otree: oTree Setup (text editor) direct questions to Tommaso install python (about python): www.python.org download pycharm (text editor recommended by Tom) Version: Community open folder with a project with a pycharm (right click on folder name) html files: most texts and formatting include command imports a given file and its code in a given file instead of TEXT in the mpl_table copy the if part of the prospect_description.html and paste it there and adjust what the if statement say. end folder: end.html: farewell screen to edit it use html markup. Add paragraph

, bold intro folder: instructions.html: the same , intro _init_.py change the labels settings.py pycharm will ask: Do you want to install some python packages? it will install what is in the requirements.txt deployment: otree hub Heroku tab click create a heroku account connect otreehub account to your heroku otree hub will see my project register as public or private deploy, configure, monitor after clicking deploy you are requested to upload the code in the form of otreezip (for that in pycharm I go to terminal (bottom) I type otree zip, do you have custom requirements YES otreezip is created in the actual foldeer there is otreezip then you upload on heroku then reset database Reset DB Postgres plan: choose Standard-0 next question Off otree auth level choose off choose Dyno size: Standard-1X auth study protected sentry click yes you need to set otree_admin_password for that you need to click link at the bottom reveal config vars OTREE_ADMIN_PASSWORD set any value you want on the deploy tab reset the DB once again to make changes effective admin: user name default default username for all otree projects: admin provide access to participants go to otree go to rooms tab create session number of participant set twice as you want your target create the session for real sessions use a room and copy room-wide URL there should be one active session in each room. 60 participants per hour standard-0 database (postgres) Reset database https://cess-nuffield.nuff.ox.ac.uk/online-otree-course-for-beginners-summer-2023/