Marcus scrubs screen recordings at 0.25x speed like he is reviewing NFL game tape, that man has a problem honestly, but that is the only reason we found it. 11pm cold pizza going stale next to a flat red bull i had been nursing since like 8, he is on FaceTime screaming DUDE LOOK AT THE RECORDING and i am squinting at my laptop thinking he finally lost it. he zoomed to 400% on a capture of our Lark screen share test and pointed at this faint rectangle on the feed. ghost rectangle. like the shadow of a window that should not be there, one overlay tool we had been running all night that worked perfectly on Zoom for weeks somehow left this outline on Lark, not the content of the overlay just the border where it sat. on Zoom the thing was invisible. Lark? nope, there it sat plain as day. wait i need to rewind though because maybe you are like me two days ago and have zero idea what Lark even is, a recruiter sent me a meeting link with "larksuite.com" in the URL and i sat there staring at it making that confused face you make when someone sends you a calendar invite on a platform you have never heard of. googled "lark video call" and turns out Lark is Feishu but for people outside China. ByteDance built Feishu internally, messaging video calls docs project management all jammed into one app, then turned around and shipped Lark which is basically Feishu but international. TikTok runs on it. a bunch of Asia-Pacific startups use it too because small teams get it free and everything hooks together tightly. my interview was the NEXT DAY and i had never opened this app in my life lol. called Marcus in a panic, he did a TikTok interview the year before so he knows how the whole thing works, they use Lark for literally everything over there. he laughed at me. "yeah it is a whole universe in there." cool thanks man really appreciate the help. on the surface a video call on Lark is like Zoom or Google Meet, click a link join video audio screen sharing normal stuff, but underneath it is weird. just weird. Lark wants you to make an account. annoying. Zoom lets you hop in as a guest type your name done, takes five seconds. Lark throws up a sign-up screen and you CAN join from a browser without one but it is janky, limited features. honestly just make a Lark account with your professional email ahead of time, two minutes, saves you from the "please sign in to continue" popup while your interviewer is sitting there watching you fumble. that popup hit me live. embarrassing.
the docs thing. this will get you if you do not know it is coming. Lark has docs built into the app, like google docs but inside the video call window. my interviewer shared one of these for me to write code in and my brain broke for a second. not CoderPad. not HackerRank. a doc. inside the call. code on the left, interviewer notes on the right, video feed up top. sounds fine when i describe it like that but it was not fine. i sat there for thirty seconds staring at a blank doc trying to figure out where to even start typing. my brain expected CoderPad. it got.. this. Marcus had the exact same thirty-second freeze during his TikTok interview. maybe it happens to everybody. screen sharing works fine, full screen or application window, compression looked a tiny bit worse than Zoom on my same wifi but honestly who cares, did not matter at all. i only noticed because i was comparing screenshots afterward like a psycho.
here is the one that actually scared me though and Marcus told me about it at like 10pm the night before and i almost did not believe him. Lark translates stuff in real time, messages docs all of it, so if the interviewer writes notes in Chinese in the shared doc Lark might just.. translate them to English on your screen right there live. Marcus said during his TikTok loop these translated notes started appearing in English on his side of the doc and he PANICKED. thought they were testing him, like a trap, you know? see if he would peek at their private evaluation. nope lol. Lark was just being Lark. check your language settings before the call, seriously, do it now if you have the app open. recordings create transcripts with speaker tags and they are weirdly accurate, your interviewer gets these after the call, every "um" every "uh" every sentence you started but gave up on halfway through all of it in writing. the interview tips for acing any job interview apply but the transcript thing makes clear speech matter more than usual, i caught myself saying "um" four times in a row on my transcript after and cringed. there is also a thing called "magic share" that lets someone share their screen and still see everyone's video, mostly for the interviewer, but sometimes they ask you to turn it on and you have to find the button buried in the sharing menu. i spent ten seconds hunting for it on camera, my interviewer waited, again. ok ghost rectangles. this was what Marcus and i burned three hours on when we should have been asleep, ordered more pizza around midnight lol. browser tools on Lark same garbage as everywhere, join from a browser with extensions running and screen sharing shows them, the browser client is a web view and DOM manipulation from extensions shows right up on the share feed, same disaster i wrote about with Microsoft Teams in the browser, i keep saying this to people and they keep ignoring me whatever. desktop overlays though, this is where it got weird, the Lark desktop app on Mac talks to a different screen capture API than Zoom or Teams and that one tool that was invisible on Zoom? left a ghost on Lark. cool. InterviewMan worked clean and honestly that is the only thing that mattered at 11pm the night before my interview. desktop overlay no browser no ghost rectangle, we ran application sharing full screen sharing Mac Windows, Marcus scrubbed frame by frame like always and found nothing zero artifacts. the overlay grabs audio through the system not through anything tied to the video app so it picked up questions from my interviewer and had suggestions on screen within seconds same speed as Zoom same as Teams. Marcus was impressed which almost never happens so i texted Derek about it and he said "who cares go to sleep" which was fair. here is the thing nobody told me though and i wish someone had, companies on Lark have a completely different vibe than your standard Valley company interview. remember the five-minute warmup you get at Google or Meta, "tell me about yourself how is your day going let me explain the format." none of that. my interviewer said hello and then sixty seconds later i was looking at a coding problem, sixty seconds, i was still adjusting my headphones when the doc popped up. Marcus said his TikTok interview was the same way, apparently ByteDance and companies connected to them just value speed, get used to it or get left behind staring at a problem you have not mentally prepared for yet. time zones are a whole thing too. my interview was 8 AM pacific, interviewer was probably ending his night in Asia. yours might be 7 AM, might be 9 PM. whatever time they give you, take it. so remember the thirty-second freeze i mentioned with the doc? went away fast, actually the doc coding became my favorite part of the whole thing and i did not expect that at all. in CoderPad the interviewer just watches you type but in a Lark doc they see your cursor live and can write comments or hints right next to your code, mine wrote a hint literally next to my function RIGHT there, i caught it instantly. if he had to say it out loud and interrupt me i would have lost my train of thought and probably missed it. Marcus told me his TikTok interviewer did the same thing. hated the doc, loved it five minutes later. there is more on shared doc formats in the complete AI interview assistant guide. what would i do differently if i could redo prep? make the Lark account two days before. TWO DAYS. not midnight the night before. professional email download the desktop app run a test call INSIDE the app because Lark picks its own audio and video devices and mine grabbed the wrong microphone on the first try which was fun to debug at 11:30pm. open a test doc so the editor is not brand new to you, language settings check them, the translation ambush drill from earlier you know the one.
AI tool? test it on Lark. on LARK. not Zoom not Teams. ghost rectangle. you remember. interview went better than i had any right to expect, doc coding was nice once i stopped being a baby about it, interviewer dropped hints inline, InterviewMan grabbed the audio and had context on screen the whole time, more support than any coding interview i have ever sat through and it happened on a platform i could not have named seven days earlier lol. Marcus still roasts me for that. most people have no clue what Lark is until a recruiter drops a larksuite.com link in their inbox and they have twenty four hours to figure it out. now you know.
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