u/Shubham_lu

Built a tool that tells you how much your habit costs you over 30 years
▲ 3 r/Habits+1 crossposts

Built a tool that tells you how much your habit costs you over 30 years

Inputs your habit (DoorDash, coffee, weed, Uber, smoking, Diet Coke) and shows the compound investment loss. My DoorDash habit is 147k over 30 yrs. I'm sick. Free, runs in your browser.

u/Shubham_lu — 12 hours ago

bombed my first ever sales call so hard the prospect hung up mid-pitch. sharing so you don't do what i did

I am at Tetr college and got my first real cold call last week. b2b saas product. lead was a coo at a mid-size logistics company.

i prepared for 4 hours. wrote a script. rehearsed in front of the mirror like an idiot.

call starts. i open with "hi sir hope you're doing well, am i catching you at a good time?" he says no. i panic and keep going with the script. start listing features. he goes "Bro, I just said no". i say "yes sir just one minute". he hangs up.

sat there staring at my laptop for 10 mins.

what i learned:

1/ "is this a good time" is a trap question. either skip it or respect the answer

2/ features pitch in the first 30 seconds is death

3/ the script is a crutch. listening is the actual job

if you're starting in sales, please don't be me. what's everyone else's worst first call

reddit.com
u/Shubham_lu — 14 hours ago

international student internship search - what actually worked after 6 months

50+ apps in 2 months. most ghosted me the second they hit the sponsorship question. sharing what actually moved.

1/ ditched the 2 column resume. switched to a boring single column ats template (used careerflow because i was tired of fighting word formatting). callback rate literally doubled.

2/ stopped applying to companies with no intl hiring history. h1bgrader is free, saved hundreds of dead apps.

3/ made 2 resume versions, one technical, one PM-leaning. same experience, different framing per JD.

only networked with other intl students. they actually refer because they get it. the formatting change was the biggest unlock and nobody talks about it. every youtube guru pushes 2-col templates.

anyone else here notice the format thing specifically? what worked out for you?

reddit.com
u/Shubham_lu — 1 day ago

adhd folks, is the duolingo-style app format the only thing that worked for chess?

Tried everything to learn chess and bounced off all of it. Long puzzle sessions, opening videos, My System, Logical Chess. Brain checks out within minutes every single time. What's weirdly working is airlearn's chess format. 3 min sessions, streaks, rating ticks up, next lesson pops up before I lose interest. Same reason duolingo works on adhd brains, the dopamine loop is just tight enough.

Went 600 → 1050 rapid in 5 weeks which shocked me bc I usually quit hobbies by week 3.

Is this just me dressing up dopamine hits as "learning" or have other adhd ppl had the same thing where the short format actually built real skill?

Andd books for sure are not for my brain.

reddit.com
u/Shubham_lu — 2 days ago

Best indian credit card for a student paying in 3 different countries?

I am studying at Tetr so spends are little too much and also in different countries. I have a shared hdfc regalia with my parents, but the charges are way too much. As im back in india i can change my credit card again, what are some good options?

real question: is there any indian credit card that doesn't bleed you on forex markup, or is the play to just accept the markup and stack a niyo global on top for international spends?

if anyone's actually done magnus + forex card combo and run the math. is it worth the annual fee. ppl with multi-country spending, what are you using?

reddit.com
u/Shubham_lu — 3 days ago

firebase folks, how are you adding passkeys without ripping out auth?

I am looking at this for q2 and i'm stuck. firebase doesn't ship native passkey support and migrating off it just for one auth method feels insane. three options i've seen so far:

1/ federate passkeys in via an external OIDC provider (descope, stytch, auth0 all seem to do this)

2/ BYO custom auth tokens via identity platform + a frontend webauthn library

wait for firebase to ship it natively (lol)

also, is anyone just disabling email/password entirely once a passkey is enrolled?

reddit.com
u/Shubham_lu — 4 days ago

firebase folks, how are you adding passkeys without ripping out auth?

I am looking at this for q2 and i'm stuck. firebase doesn't ship native passkey support and migrating off it just for one auth method feels insane. three options i've seen so far:

1/ federate passkeys in via an external OIDC provider (descope, stytch, auth0 all seem to do this)

2/ BYO custom auth tokens via identity platform + a frontend webauthn library

wait for firebase to ship it natively (lol)

also, is anyone just disabling email/password entirely once a passkey is enrolled?

reddit.com
u/Shubham_lu — 4 days ago

Detergent sheets sounded like pure startup nonsense to me

You know those ultra-thin detergent sheets that look like someone reinvented paper?

I finally tried them because carrying giant liquid detergent bottles in my apartment is genuinely annoying. Expected:

1/ clothes smelling weird

2/ stains staying

3/ “eco” disappointment

But after a few wash cycles… okay fine. they actually work. Still feels fake somehow though.

reddit.com
u/Shubham_lu — 7 days ago

My monthly White Monster spend is crossing $300. AMA

I think at this point my bloodstream is 40% caffeine and poor financial decisions.

I’m a student founder at Tetr (at home for the summer), so the current daily schedule was basically building stuff, random client calls, late night idea spirals, pretending sleep is optional, etc. And somehow White Monster became the unofficial operating system.

What scares me is I’ve stopped buying it for “energy” and now buy it because my brain associates the can opening sound with productivity 💀

What is your story with Monster Drink?

reddit.com
u/Shubham_lu — 7 days ago

My monthly White Monster spend is crossing $300. AMA

I think at this point my bloodstream is 40% caffeine and poor financial decisions.

I’m a student founder at Tetr (at home for the summer), so the current daily schedule was basically building stuff, random client calls, late night idea spirals, pretending sleep is optional, etc. And somehow White Monster became the unofficial operating system.

What scares me is I’ve stopped buying it for “energy” and now buy it because my brain associates the can opening sound with productivity 💀

What is your story with Monster Drink?

reddit.com
u/Shubham_lu — 7 days ago

X(twitter) users have unnecessary superiority complex, wdyt?

Instagram is way better than X any day, they are funnier as well

u/Shubham_lu — 12 days ago

I thought we were finally closing our first proper enterprise deal then they asked:

“do you support SSO + SCIM?” we don’t 😭

now im realizing enterprise auth is basically its own product category, auth0 gates it

everyone says “just use workos”, opensource people say “self host it bro”. And im just sitting here wondering what SaaS teams are actually doing in 2026. did you build it? pay for it? lose deals because of it?

reddit.com
u/Shubham_lu — 16 days ago
▲ 1 r/SaaS

I thought we were finally closing our first proper enterprise deal then they asked:

“do you support SSO + SCIM?” we don’t 😭

now im realizing enterprise auth is basically its own product category, auth0 gates it

everyone says “just use workos”, opensource people say “self host it bro”. And im just sitting here wondering what SaaS teams are actually doing in 2026. did you build it? pay for it? lose deals because of it?

reddit.com
u/Shubham_lu — 16 days ago

Picked up Psycho-Cybernetics recently and honestly didn't expect much. But one idea stuck with me: Your brain just follows the self-image you feed it.

I am a founder doing my college at Tetr and it made me rethink:

1/ why I hesitate on certain decisions

2/ why I sometimes default to playing small

3/ and how much of that is just... conditioning

I've read a bunch of "business" books, but this felt more foundational than tactical.

Curious, what's a book that actually changed how you think?

reddit.com
u/Shubham_lu — 16 days ago

Picked up Psycho-Cybernetics recently and honestly didn't expect much. But one idea stuck with me: Your brain just follows the self-image you feed it.

As a student founder, it made me rethink:

1/ why I hesitate on certain decisions

2/ why I sometimes default to playing small

3/ and how much of that is just... conditioning

I've read a bunch of "business" books, but this felt more foundational than tactical.

Curious, what's a book that actually changed how you think?

reddit.com
u/Shubham_lu — 16 days ago