NIGHTLIFT — crew edition

Self-contained nighttime strength tracker. Multi-user, cloud-synced, with a group/social layer and a large built-in exercise bank for instant swaps.

File

• index.html — the whole app. No build step, no serverless function, no API key.

Users / codes

• Aaron — 7880 · Sean — 1221 · Abe — 7886 Each code is its own user (own progress, stats, profile, swaps). Edit the USERS map at the top of the to change codes/names.

Replace exercise (now offline + free)

Every exercise has a ↻ Replace button. It instantly swaps in a different exercise from a built-in bank of ~90 moves (same muscle group, your equipment only, not a duplicate of what’s already in the day), with cues, sets/reps, a progression note, and a matching animation. “Undo swap” reverts. No API key, no cost, works offline.

The earlier AI version (api/replace.js + an ANTHROPIC_API_KEY env var) is no longer used. You can delete that file from the repo and remove the env var if you added it — nothing depends on them now.

Supabase (project xcgdnzypisbzxhaooswb)

• nightlift_log — per-user daily logs (PK user_id + log_date)
• nightlift_profile — per-user height/weight/name + swap overrides
• nightlift_wall — shared taunt/support messages RLS on, anon read/write. URL + anon key are baked into the CONFIG block.

Resist tab (beat the graze)

A tab to open when you’re tempted to snack. Tap what you’re craving from a grid of ~24 common culprits. Then three behavior-tuned paths:

• ⏱ Ride it out (10 min): an urge-surf countdown ring with rotating distraction prompts (water, walk, breathe, taunt the crew). Cravings fade in ~10 min; you wait with it, then bank the win. Beat it early anytime.
• Skip it now — bank it: instant win for when you don’t need the timer.
• I had it: a no-shame give-in log (“no big deal”) so the data stays honest and one slip doesn’t blow up the habit. Wins build a resist streak (loss-aversion: “don’t break your streak”) alongside skips this week, calories resisted, sugar dodged, and an all-time “≈ lb not gained” (cal ÷ 3500). Slips are counted gently and never punished. The Crew board shows each person’s calories resisted this week (wins only). Framing stays swap-and-water, not skip-real-meals; numbers are labeled estimates.

Plateau detector (opt-in rotation)

The program stays fixed on purpose — progressive overload on the same lifts is what builds muscle and lets the app track progress. But when a lift’s total reps go flat or decline across its last 3 logged sessions, that exercise shows a gold ⚠ PLATEAU badge and auto-opens with a prompt: Rotate it (pulls a fresh variation from the bank) or Keep pushing it (snoozes the prompt 14 days). It only fires after 3+ logged sessions of that lift and never swaps anything automatically — variety exactly when the data says you’ve stalled, not before. Dismissals are stored per device.

Day rollover at 4 AM + multiple sessions per day

• The app’s “day” rolls over at 4 AM local, so a workout logged at 1 AM counts for the night before, not the next morning.
• The Tonight tab has a session bar: tap ＋ Session to log a second (or third) workout the same day, switch between them, or remove one. Each session has its own focus (A/B/C/D), sets, and Log button. Streak, the Progress stats/heatmap/volume chart, and the Crew weekly standings all count every session.

Custom equipment + auto-scaled reps (Crew → Your profile)

Each user lists the kettlebells and dumbbells they own (e.g. 10, 25). Every exercise then shows the right load from their gear and scales the reps: heavier weight → fewer reps, lighter → more (compounds use your heaviest, isolation moves like raises/curls use your lightest). Timed and to-failure work isn’t scaled. If someone lacks an implement, it falls back gracefully (KB move → DBs, etc.).

Gear coach

A card on the Crew tab recommends what to buy next based on what you own and your logged reps — if you’re routinely pushing past ~18 reps a set, it nudges you to add the next size up (with concrete kettlebell/dumbbell suggestions).

Crew tab

• Weekly standings for all three; 👑 leader, 🪣 last place = “Tub-o-Shit” (by sessions, ties broken on total reps, resets Sundays).
• Wall: send a 🔥 taunt or 💪 support to one person or everyone.
• Profile: edit height/weight. “Switch user” to sign in as someone else.

Deploy

Upload index.html to the repo → Vercel auto-redeploys. That’s the only file needed now.

Security note

4-digit codes + public anon key = a casual gate, not real auth. Fine for a crew’s workout logs.

Food tracker (protein & carbs)

A new Food tab tracks daily protein and carbs against goals.

• Common foods — catalog of staples across Protein/shakes, Meat, Fruit, Veg, Carbs, and Dairy. Tapping one opens a quick editor pre-filled with that food’s protein/carbs/calories so you can adjust the numbers before logging (brands differ — e.g. one yogurt’s protein vs another) and pick a servings multiplier (×1–20, with a live total). You can also rename it to your brand.
• Manual — type protein, carbs, and (optional) calories for anything not in the list.
• Scan label — snap the Nutrition Facts panel; on-device OCR (Tesseract.js, lazy-loaded from CDN, fully client-side, no API key) reads protein/carbs/calories. Always shown for you to confirm/correct before saving; if OCR can’t read it, you just type the numbers.
• Goals — three daily bars: protein (≈0.9 g/lb, a target to hit), carbs (a target to hit), and a calorie cap (a ceiling to stay under, default ≈12.5×bodyweight). The calorie bar shows headroom left while you’re under and flips to a warning when you go over. All three editable via “Edit goals”; stored per device.
• Daily totals reset on the 4am logical-day boundary like everything else; entries sync to Supabase (nightlift_food) and cache locally. Tap ✕ on any entry to remove it.

This is the beginning of the README. Read the rest at the original. Read the full README ↗