For note, you generally get a lot faster of an answer at
https://elixirforum.com/ as there are a lot more eyes there. :-)
It depends on how you are doing it so far, like if you are deep with schemas and handlers those will likely need to be tossed out. However the application 'work' code should be as simple as calling from Phoenix Controller modules. If you can show examples of how it is now on the forum above (it uses standard markdown so syntax highlighting with code fences works) then you may get some direct conversions. :-)