CA data encodings / notations / file formats

[confocaloid]

There were some existing threads for various questions, but as far as I know no single thread for these existed.

A few conduits encoded as apgcodes (with rule set to B/S012345678 so that they are actual valid still-life apgcodes):

• R64 -> xs54_255q8426x4sggz31470652zs4ezygoozya33ggzy533y111
• Fx77 -> xs31_178cy22ae8zzzx33ya6a8ozzx8e22
• Fx189 ->
  xs95_ycca23zxo4cyioge2z330f9zc48n98cylccybe23z2ego
  113yagg0ggxggzyh110101243zwe8syecczzyc354c
• speed tunnel ->
  xs120_w247zylog8gzwok2u0o4cyaca2616246zc8268701h
  88gy6cik8z31km1u0o811y7ggw62sgzw12470123y166y11qa6zyh321zy944sg

Does this look practical, as a way to define a specific variant of a conduit? Is there a more compact/convenient encoding?