How to confirm custom transaction with solo mining? I'm looking to cgminer software (https://github.com/ckolivas/cgminer) for understand that how mining works. It is difficult to understand and there are lots of codes. For this I'm asking this question here.

Is it possible that can I confirm a specific transaction? For example I sent a bitcoin from my address to other address and it generates a transaction ID. Can I pass this transaction id to my custom solo miner and it confirms it. Is it possible?

Is there a software that mines custom transaction seems like:

myOwnGPUorCPUMiner -tx [my custom transaction id]


It will confirm my transaction and finished or continues to mine other transactions. (This code is just an example)
In Bitcoin, it is the miners' task to order the transactions. Thus, it is possible for a miner to pick which transactions they want to confirm. By default, they pick the ones that will provide the largest mining revenue to them, but often they will pick transactions to prioritize out of band.

However, you can only confirm a transaction by mining a block. That's what a confirmation is, a transaction being included in a block and thus being committed to on the blockchain.

However, it is infeasible for you to mine a block at home. Whatever minig power you may be able to acquire and run at home will likely not help you mine a single block in the next 1,000 years. I've elaborated here: In the ASIC-age, is it worth starting mining Bitcoin at home?