To be implemented sometime but not by me.
A Trip to the North
3D first-person hidden object game with free movement, set in Eastern Europe.
Catgirl Accessibility
Website that tricks catgirl enthusiasts into learning about website accessibility by giving examples of techniques that work for both people with disabilities and, hypothetically, people with feline sensory systems.
OutLoudOS
Operating system with no way of interacting with it other than by using a screen reader.
biggerfish
General purpose programming language that consists entirely of macros.
carpCSS
Sass UI framework that implements everything as mixins that you can optionally apply to whatever component you want.
oldhub
Flatpak repository for outdated software.
seawall
Windowing system and UI toolkit that uses a bitmap tile grid instead of text or arbitrary graphics.
Prior art: 16 bit video game consoles
telemodem
Dial-up modem that sends data via a video stream.
Prior art:
vonman
Package manager for fonts, icons, images, and other non-executable files.
Abandoned ideas
B--
Programming language with no typing, no error checking, and the worst possible default algorithms.
Reason: C and Shell already exist.
Moment
Display server with the emphasis on modularity and a multi-level feature set.
Reason: No need for another Wayland.
Peppennaise
UI system that uses paper as a skeuomorphic metaphor.
Reason: Probably won't tanslate well to the digital domain, making it suffer the same fate as Material Design.
Peripheral Web Wiki
Wiki documenting lesser known websites.
Reason: Depending on the verbosity of the articles, it'd either be useless or unsustainable.
Photo Machine
Android camera app that lets you disable image processing and manually adjust everything.
Reason: Open Camera already exists.
amoebus
Toy WebAssembly OS-like environment to test alternative approaches to syscalls, sandboxing, and dynamic linking.
Reason: Too ambitious.
dexcribe
JavaScript web quiz framework.
Reason: Not another one.
humanoidOS
Toy operating system that only supports virtual hardware.
Reason: Too ambitious.
kaard
Android ID card app based on transfering signed JSON over NFC.
Reason: No actual government will adopt this.
lichfield
General purpose programming language where all functions are asynchronous.
Reason: Sonic Pi already exists.
memeruns
Speedrun website for cheated, fake, and non-game speedruns.
Reason: speedrun.com and tasvideos.org already exist.
shiplap
C video game engine for basic 2D pixel art games.
Reason: Not another one.
smethana
Discussion platform based on colontags and comment deduplication.
Reason: Useless.
smh
Wayland compositor where only 1 window is displayed at a time per output.
Reason: cage already exists.
steplane
Checklist app that shows only one step at a time.
Reason: One Task already exists.
waykeeper
Eyecandy Wayland screen locker.
Reason: waylock already exists.
waylandx
Wayland compositor allowing to run Wayland apps on X11.
Reason: No.
whinlucker
Wayland winlocker proof of concept.
Reason: Probably unimplementable in a way that won't be stupid.
wldj
Wayland configuration and debugging swiss army knife utility.
Reason: wlrctl and wlr-randr already exist.
xdj
xdg-desktop-portal swiss army knife utility.
Reason: ASHPD Demo already exists.
zalupa
Manual data compression language and format.
Reason: Can be done better with macros.