The secure-env-demo repo has everything you need to try both approaches. Clone it, pick the one that fits your setup, and run the demo app:
Over the years, Android has evolved into a critical piece of technological infrastructure that serves hundreds of governments, millions of businesses, and billions of citizens around the world. Unilaterally consolidating and centralizing the power to approve software into the hands of a single unaccountable corporation is antithetical to the principles of free speech, an affront to free software, an insurmountable barrier to competition, and a threat to digital sovereignty everywhere.
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Москвичей предупредили о резком похолодании09:45
第一百三十五条 公安机关依法实施罚款处罚，应当依照有关法律、行政法规的规定，实行罚款决定与罚款收缴分离；收缴的罚款应当全部上缴国库，不得返还、变相返还，不得与经费保障挂钩。