Gemini, the crypto firm run by Cameron and Tyler Winklevoss, is cutting up to 25% of its workforce and ending operations in the United Kingdom, European Union and Australia – a retreat that comes during a sustained bitcoin selloff.The layoffs will impact about 200 employees across Gemini’s operations in the US, Europe and Singapore, the company said in a filing. The Winklevoss twins said the cuts would allow Gemini to “double down on America” and serve US customers.“These foreign markets have proven hard to ...