Looking for and need:
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Runs on most or all Linux mobile/tablet other than Android (can run on Android too), think touchscreens e.g. Plasma Mobile or postmarketOS
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Can be programmed with a language
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Touch input handling
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File read and write ability including where home directory is (can be like make my own finder of home)
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Rendering in some form
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Text rendering even if it is like app name
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Can know when to close/end app
Would like but can do without:
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Free to use
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GPU shaders for gradients support (really want)
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GPU compute shaders
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Text input with software keyboard (really want)
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Audio output, think speakers
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Pixel density knowledge at runtime
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Threading in programs, think concurrency
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Near one source code for all platforms
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Really don’t need but native device and sensors access
Does any such thing exist? This would be for games, can you please direct me to what says that whatever you are suggesting can be what I need?