This is a standard build order for ZvT (vs bio), taken straight from Oreo's guide here: https://www.youtube.com/watch?v=7-slioUj7-8
This is the basic build, he also has other videos that teach you how to react against different things that Terrans can do, when you use this build.
| 12 | 0:00 |  | |
| 13 | 0:12 |  | |
| 13 | 0:16 |  | |
| 14 | 0:30 |  | |
| 16 | 0:48 |  | |
| 15 | 0:50 |  | |
| 17 | 0:58 |  | |
| 18 | 1:08 |  | |
| 17 | 1:13 |  | |
| 17 | 1:15 |  | |
| 18 | 1:27 |  | |
| 21 | 1:59 |  | |
| 21 | 2:00 |  | |
| 27 | 2:10 |  | |
| 28 | 2:20 |  | |
| 31 | 2:39 |  | |
| 31 | 2:42 |  | |
| 32 | 2:50 |  | |
| 36 | 3:04 |  | |
| 36 | 3:12 |  | |
| 44 | 3:26 |  | |
| 46 | 3:33 |  | |
| 50 | 3:35 |  | |
| 50 | 3:39 |  | |
| 61 | 4:05 |  | |
| 62 | 4:11 |  | |
| 70 | 4:31 |  | |
| 73 | 4:48 |  | |
| 80 | 5:12 |  | |
| 79 | 5:15 |  | |
| 82 | 5:28 |  | |
| 84 | 5:30 |  | |
| 84 | 5:39 |  | |
| 84 | 5:41 |  | |
| 91 | 5:44 |  | |
| 93 | 5:54 |  | |
| 103 | 6:07 |  | |
| 109 | 6:27 |  | |
| 109 | 6:34 |  | |
| 118 | 6:49 |  | |
| 122 | 6:56 |  | |
| 122 | 6:57 |  | |
| 122 | 6:58 |  | |
| 123 | 7:01 |  | |
| 145 | 7:35 |  | |
| 146 | 7:43 |  | |
| 154 | 7:49 |  | |
| 158 | 7:52 |  | |
| 158 | 7:56 |  | |
| 176 | 8:08 |  | |
| 189 | 8:34 |  | |
| 187 | 8:49 |  | 

Notes from his YT video:
vs 8 rax: Don't tech up, stay 75 drones, ling bane, no hydras
vs 4th cc: 80-88 drones, 8 gases, infestation pit and hydra den
@infestation pit: hive @hive lurker range, adrenal, as many lurkers as you can afford
Game plans:
OR