I'm probably using Love2d or Pico-8. The code between the 2 is very easy to port back and forth (same language - Lua). For anyone interested, I made a simple compact sprite manager function for Love2d that works the same as it does in Pico-8.
Something I saw recently for this workflow: you can insta-port PICO-8 code to standard Lua code by wrapping printh[=[ ...]=] around your entire source. This will convert PICO-8's !=, +=, if one-liners, etc. back to Lua, for use in things like Love.