Mobile apps aren't free
第四十五条 旅馆、饭店、影剧院、娱乐场、体育场馆、展览馆或者其他供社会公众活动的场所违反安全规定，致使该场所有发生安全事故危险，经公安机关责令改正而拒不改正的，对其直接负责的主管人员和其他直接责任人员处五日以下拘留；情节较重的，处五日以上十日以下拘留。，推荐阅读夫子获取更多信息
The semantics around releasing locks with pending reads were also unclear for years. If you called read() but didn't await it, then called releaseLock(), what happened? The spec was recently clarified to cancel pending reads on lock release – but implementations varied, and code that relied on the previous unspecified behavior can break.，更多细节参见搜狗输入法2026
Airbnb didn’t buy houses. Uber didn’t buy cars. You just need to connect supply with demand. Build the platform, not the product, and scale without the cost.