LOFT: Ergonomic Keyboard Remapper

A free utility that remaps standard keyboards into ergonomic split-layout, thumb-key configurations without requiring special hardware. Targets programmers and writers seeking ergonomic improvements on existing equipment.

RSI and repetitive strain awareness is genuinely rising among knowledge workers post-pandemic, and software-only ergonomic tools have seen renewed interest as people look for cheap alternatives to $300+ split keyboards. The closest substitute is Karabiner-Elements on Mac, which handles complex key remapping but isn't purpose-built for ergonomic split emulation — no clear incumbent owns this specific framing. The $500–2k/mo ceiling makes sense given the tool is positioned as free, meaning monetization depends entirely on a pro tier, donations, or a niche upsell, none of which convert reliably from a utility user base. The core risk is that the users who care enough about ergonomics to install a remapper are also the users most likely to just buy an actual split keyboard, collapsing the addressable market to a narrow band of cost-constrained or travel-focused typists.