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Pick your math level and topic, then solve generated quizzes with instant answers.
@EsaiePelinyn · X
Check out what I just built with Lovable!

Analyze customer friction points and get optimization recommendations to improve e-commerce conversion rates.
@EnricoBoeker · X

Connect Gmail accounts to automate email sending and track opens and clicks.
@KenziChenBuilds · X
Hey! Developer behind Always looking for feedback to make it better.

400kA铝电解槽柔性负荷调节中试系统三维数字孪生操作台
@idingxs · X
给客户做了一个3D工厂模拟, 收多少钱合适尼? 总体消耗了plus得一周token的量。 工具主要是:@Blender & @threejs

Send, sign, and verify legally-binding signatures at one flat price.
@signfileio · X
Just shipped Signfile ( - SHA-256 fingerprint on every signed PDF - Public verification at /verify (no login) - 3 free contracts / month, no card - No per-document fees Day 1 of building in public.



Roll 3D animated dice (D4-D20) for tabletop games instantly.
Nalife520 · V2EX
最近用 Codex 做了一个 3D 骰子! 最近做了一个很小的网页工具:3D 骰子。 做完后有点纠结: 这种小工具到底应该保持极简,还是把常见功能都补上? 抛骰子: https://wheelpage.com/zh/dice-roller/ Dice Roller: https://wheelpage.com/dice-roller/ 现在功能很简单:打开页面,点一下,骰子滚动,然后给出结果。 一开始觉得骰子就是 1 到 6 的随机数,应该很好做。 但做的时候发现,如果只是直接显示数字,又不太像“掷骰子”;做成 3D 动画,又担心有点多余。 现在倾向于先保持简单,打开就能用,不加太多设置。 顺便也做了一个抛硬币页面: https://wheelpage.com/zh/coin-flip/ 它和骰子类似,都是临时做随机决定的小工具。

@coryalthoff https://t.co/XQ3z4c8iwx it’s a sexy product, I promised.
@Luna_beexy · X
it’s a sexy product, I promised.

Compress, merge, split, convert, and edit PDF files directly in your browser.

Calculates concrete needed for slabs, footings, driveways, and small construction projects in cubic yards, bags, or cubic meters.
taylormichellebf · V2EX
做了一个免费的 Concrete Calculator,帮 DIY 用户估算混凝土用量 最近做了一个英文站:The Concrete Calculator 地址: https://the-concrete-calculator.com 它主要解决一个很具体的问题:用户在做 patio 、shed base 、walkway 、slab 这类小型混凝土项目时,不知道该 买多少混凝土、多少袋,或者该订多少 cubic yards 。 目前支持: - Concrete Slab Calculator - Concrete Pad Calculator - Concrete Yard Calculator - Concrete Bag Calculator - waste factor - cubic yards / cubic feet / cubic meters - 简单材料成本估算 做这个站的原因是我发现很多英文混凝土计算器要么广告太重,要么结果不够直观。这个版本尽量把核心计算和 单