koprodev is an independent software publisher whose work is distributed through GitHub, where the developer maintains a small but focused catalog of desktop utilities. The publisher's current offering, Sumbo, is a window-mirroring tool designed for users who need to keep an eye on specific content while working in other applications. Sumbo allows any window on the desktop to be duplicated into a compact, always-on-top view that floats above other programs, ensuring the mirrored content remains visible at all times regardless of which application is active. Beyond simple mirroring, the tool provides practical customization features: users can crop the mirrored view to display only the relevant portion of the source window, adjust opacity to fade the overlay so it blends unobtrusively into the workspace, and enable click-through behavior so the floating view never interferes with mouse input directed at windows beneath it. These capabilities make Sumbo well suited to a range of everyday workflows, such as monitoring a video stream, a chat conversation, a dashboard, a document, or a live preview while concentrating on a primary task elsewhere on the screen. The software addresses a common productivity need — following reference material or background activity without constantly switching between windows or dedicating an entire display to passive content. As a utility in the desktop enhancement category, Sumbo exemplifies the kind of lightweight, single-purpose tool that independent developers publish on open platforms like GitHub, where source availability also allows technically inclined users to inspect, adapt, or contribute to the project. koprodev's catalog presently centers on this one product, reflecting a concentrated approach to solving a specific desktop workflow problem.
Mirror any window into a single always-on-top view — crop it, fade it, click through it.
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