Can I code Adobe Photoshop?

COPYDon't rebuild Photoshop's non-destructive layer pipeline — for narrow, single-purpose editing, build a focused tool instead: 1. Upload an image, and apply basic operations (crop, resize, rotate) using an existing image-processing library (Sharp on the server, or the Canvas API in the browser for client-side editing). 2. A handful of filters (brightness, contrast, saturation, a couple of preset looks) applied as a single pass, not a stacked layer history. 3. Download the result — no need to preserve editability, just the final output. That covers real 'resize and touch up a photo' needs, a genuine evening project. Out of scope: non-destructive editing across dozens of stacked adjustment layers and masks (a rendering-pipeline problem, not a feature list), consistent color management across devices and print, and GPU-accelerated performance on multi-gigabyte files.