i don't think it'll be realised for android or any other phone OS any time sooner due to poor optimization, and may need to wait long for this game to be finally polished for PCs first.
quartz is found in the cave (i recommend bringing some food cuz you may take a lot of time to find quartz or if ur lucky enough it'll be fast), that is near romeo, ball joints are also near romeo, burried in grain pile (it's recommended to bring metal detector), ankle or knee joints can be found inside tr3 (in bookshelf where's the keyboards etc.) and in tr1 (look inside a bucket). Feel free to ask me if smth is confusing to you.
You misunderstand the concpet of the game. May this be inspired by the "Signal Simulator" and it's genre, but this game it's completely different from what you think. So let me start from the third: about the roads/navigation, have you ever looked at the commands in base or any other terminal? You can basically target any satalite by "sv.target "sat. name"" and follow the red triangle of a compass on the bottom of ur screen, you can easily lead your way by doing so, no need to always follow the sings/roads all that. Travelling around the map is important for this game, since you can stumble upon some constructions, find pieces of (unfinished yet) lore inshort, exploration is important, you really shouldn't just sit in your cage searching for signals, tho yeah this game is about searching signals, but doing other stuff may just be more interesting than just monotonous work, forgot to mention that there's a crafting mechanic, you can create yourself a robot-wife to gather hashcodes and fix servers/transformers for you, since i can agree getting hashcodes everyday can be annoying but exploring map can still play a great role in ur play. This game has a big map for a certain purpose, why haven't you asked that yourself? About Co-op, the game is made on UE4 and yes devs could do co-op but they straight up have no experience for that, as well as trusting ppl online may not be a great way of learning how to make it functional. Food may be a pain in the ass but have u sniffed around the settings? You can easily disable the food tolerance if it gets on your nerves, mate. Trash betrays the lore as well, like do you really think everything is going to be shiny and clear after tons of stuff happened to previous employee? And of course you can sell trash by buying item box and putting all the trash there, have you ever properly checked store? But also don't forget that this game is in Pre-Alpha, meaning it's not even alpha version yet. It's a heavely unfinished project which you can goof around in, compared to Signal Simulator, a lot of stuff is going to be added.
