Too get stared with tekos Apps you need:
1- A Hosted Tekos Flow Instance
You can subscribe to an instance with tekos Bot here: https://bit.ly/tekos-flow-subscription
You can host your own instance for free here: https://hub.docker.com/r/hitekos/tekos-flow
2- A Bot ID and a Bot Token
If you subscribed to a hosted instance of Tekos Flow by tekos, you don't need to create a Bot credentials because TekosBot will create it automatically for you at the deployment step.
That you can generate for free with TekosBot here: http://bit.ly/create-bot
A Bot credentials are not mandatory if you built a webservice or a backend system that works with API, websocket or mqtt to communicate with other systems.
You can customize the display name and the avatar of your Bot later
2- Use a boilerplatre template to start building
When you have subscribed to a Hosted Tekos Flow Instance, you can select a template to start with at the deployment process.
If you host Flow using Docker for your own, there is also a boilerplate template. It will be recommanded to add the bot credentials as environment variables.
3- Test and iterate on your Bot
Your Bot is available at this address: https://chat.tekos.co/#/user/@<YOUR_BOT_ID>:m.tekos.co