luck = exposure + awareness
I find that in business, luck is mixture of being aware of and making yourself available to opportunity.
Opportunity will present itself to you when you make yourself available to show up and participate in meetings and social gatherings (online or irl). If people like you - the way you present yourself, your energy, your values - people will want to know you, talk to and about you, recommend you and your work.
And you will find opportunity when you make yourself aware of your surroundings and know just when you can step in and be helpful.
When the two of them meet, luck is generated and you get the job, the project, the client, the part, …
Outsiders might perceive this as pure random act of luck.