If a defendant cannot afford bail, then at the arraignment or any hearing while still incarcerated the defendant can request a bail reduction or release without bail. That must be supported with evidence that the defendant is unlikely to reoffend or to flee.
And while some will tell you that you can't remain anonymous, the short answer is actually yes, you can. (But with one major consideration.) The Court is going to need a name and person to return the bond to once the court date has been successfully completed.
Stay in the state of Texas until trial. Do not use any drugs prohibited by law or by the court (which even can include prescribed narcotics). Work at suitable employment. Report on a regular basis to a probation officer and notify such an officer of any address changes.
No Bond Hold This could happen if the defendant is considered a flight risk, poses a danger to others, or if there are reasons to believe they may tamper with evidence or intimidate witnesses. In such cases, the judge may issue a “no bond hold,” which means the person will remain in custody until their trial.