Hi tete, I am stuck again. This time I am stuck at this step:
"and write it into datadir/keystore/nodekey with nano,"

• First of all what is nano, I cannot find it in my app store?
• So instead I installed an app called "code editor"
• From there I search for any directory called datadir or idena or termux, but I cannot find any?

So my problem is, not only nano does not exist, "datadir/keystore/nodekey" also does not seem to exist, what to do now?