Table 2.

Illustrative quotes pertaining to primary themes.

A. Computer feasibility/acceptability/perceived utility
A1. Receptivity to computerized intervention	ID5: It was more involved than I thought it would be, and I’m actually—I wish it was around when I was in doing this because it probably would have helped me through a lot of stuff, especially dealing with my mom’s shit.
	ID20: It’s really easy to understand and then I like all the different suggestions that are listed, and it helps you think of your own that you can add to the list.
	ID26: It’s gonna really help somebody out and definitely save some lives.
	ID27: I didn’t have these before. I didn’t have stuff like this to look at and tell me—you know what I’m sayin’? Give me some instruction on how to not be distracted and go back to usin’ drugs. Do you know how many times I tried to quit? You know what I’m saying?I dunno. This is great. This is really good. Yeah. I like that.
A2. Effective in facilitating learning	ID18: It’ll make them think about it more ‘cause, so I think that’s also a good thing ‘cause they’ll sit there, and they’ll think, this is what I have to do to stop. These are what’s stopping me from stopping. I think it’d definitely be good for them.
	ID21: Just so I can think why I started using or why I wanna quit. If I had more time to sit and do that, I think I would understand myself more.
	ID27: Well, like I said, this is a—there’s a lot of stuff here that I would never think of doin’ to overcome an urge or somethin’. These things are new to me. I just never would think of these things.
B. Computer structure
B1. Desire for flexibility in the delivery of intervention	ID2: Probably here at the clinic ‘cause you don’t know—for me, you don’t know who can knock on the door. I’ll be worried about someone’s gonna find out, something like that. No. At the clinic, yeah. Definitely.
	ID3: I think I would prefer my home if I was gonna do it. I’m a more private person.
	ID8: A lotta people are in a rush, and they have a lotta things. Like me once—I have five kids. That would be very helpful to be at home once everybody’s in bed and you’ll be able to do it on my time. I think it’d be very helpful.
	ID13: I think I would rather do it here because I would have less distractions. Where at home, I may feel like I might put it off and not do it because I might have distractions at home that might take me away from doing it.
B2. Appropriate for patients newly entering treatment	ID6: If I was sitting there and I’m in here, and I walk out the door today after my first dose of Suboxone, and I’m gonna say I’ve been using drugs, opioids, whatever they may for the last two years, and my whole life’s all f’ed up, and I’m getting ready to start over again, I’d love to see those everyday at first.
	ID7: It would be nice to receive it when I get here before I withdraw cuz you do a first appointment and then you come in…. I’d be more curious if anything. You know? When you’re in that place where everything’s horrible, you will do anything to make—to try to get better. That’s how I feel.
	ID12: I think it can definitely be helpful. I think at the beginning, especially in recovery, anything extra to help you is good. I think it’s a good idea. I just think that it’s, like I said, it’s gonna be something that people can actually use or be applied.
	ID21: I wish I had that option, because honestly, I think it’d help my recovery a lot better. When you first come in here, you’re like nothing’s gonna work, blah, blah, blah, but honestly, to have someone like that to text message you and all that, I think that’s gonna help them a lot.
C. Text message feasibility/acceptability/perceived utility
C1. Receptivity of text message intervention	ID2: For me, it just reminds me, just maybe, like I said, stay strong today.
	ID6: It will because the support of knowing you’re not alone and everything else, along with that, with the medication is the two combined to give you the most effective treatment possible, but what you guys are doing I think is incredible. I really feel that way.
	ID10: If I had the option, I may have used it right off the bat. Yeah. When I was in the dumps or feelin’ bad or whatever dependin’ on what the situation was, and I just hit a button and it tells me the response, yeah.
	ID16: For real ‘cause you might—that text message at that time may come at the right time to where you were having a thought that you wanted to go use again and you were like trying to stop yourself. Hesitating by not wanting to pick up the phone and call your sponsor like you’re supposed to do, but you’re trying to find a way out. Then boom you get a text message.
C2. No concerns about privacy	ID4: It shouldn’t say, “From [PLACE],” because they might—I don’t know, they might be keepin’ it from their loved ones or other ones, and then if you see the text, it’s like, “Okay, what’s this about?” Keep it generic. Generic would be I get these texts that are from numbers, not a name, so it’s just random numbers, and then it’ll say a message.
	ID5: No, because usually people have their phones locked now. Mine’s fingerprint/iris—there’s nobody getting—it’s Fort Knox. No one’s getting in there. Even if I lost it, there’s no—they try three times and it’s erased, and nobody’s getting in it. Most people, that’s what they do to their phones now, so I don’t think so.
	ID18: I don’t mind. It’s all confidential and everything, so it’s not like your name’s gonna get put up on Google or something.
C3. Technology-based platforms help to overcome fears of judgment	ID16: No, because you have like another support system just through text message and everybody’s always on their phones. People are always getting text messages. They’re always texting. To have a reminder text is really good ‘cause some people are not going to go to a meeting, or they’re not going to call that support system ‘cause they feel embarrassed that they might say, “Oh, see I knew that was going to happen to you.” So through a text message is like more privacy.
	ID18: I think it’s good. I think for people that don’t want to talk to someone about their problems and stuff, this will be very helpful.
	ID24: That’s why I think it’s cool. Some people don’t like talkin’ on the phone. This could be really good for people that just need—you know what I mean? Even though you’re feeling like that, you still don’t wanna be—and you don’t wanna be around people. You know what I mean? You don’t want to talk anyone. Yeah, that is a good—that’s a good idea.
D. Text message structure
D1. Mix of scheduled and on demand messages	ID5: I’d say at least one in the morning, maybe noontime. I’d say one in the morning to get them started, one at around noontime or whatever, the midday. Then I would leave it—if they need it—put in whatever, like, “I’m anxious” or whatever and have them beep it. But at least once or twice a day. I would say morning and afternoon. Like a wake-up call and then a “you can do this.”
	ID9: Possibly once a day, and if it was possible to get more, that should be—if there was a way for me to—if I was havin’ a rough day, I’d be able to get more.
	ID10: It depends on what they’re feelin’ like. I would probably say no more than three…. If they are havin’ ‘em [cravings], and they text you, definitely for as long as they need it.
	ID12: I would prefer them once every morning, but also, I guess, have the option if you’re in a situation where you need something to be able to reach out.
D2. Need to be personalized in nature	ID4: When you have a program like this that is tailored to your needs and your needs only, it actually helps.
	ID19: Text messages, if they’re geared to the person and your computer program really individualizes the person and they’re not just generic messages sent out the same message to everybody, then I think it would work. “Hey, have a good morning; remember to stay sober” to everybody, that may not work. If they’re geared to the person because of what they selected on their survey, then I think it could work.
	ID27: I think it’s great because why do you wanna go through tryin’ to avoid somethin’ or get off a drug or somethin’ and havin’ to read—just reading things of—that involve all types of people? That might not be for you. If it’s personalized, it’s like this is pertainin’ to the answers that I gave, and so it’s gonna help me. It’s not for anybody else. It’s just for me. So, you know, That feels good.
D3. Encourage the use of multimedia	ID4: I think videos would be helpful because you’ll get your mind off of—I mean, emojis gonna be—I think, I don’t know about the emoji thing, but video, a nice video. That would kinda change your mood, your mind, especially inspirational ones.
	ID20: Emojis are cool, I guess. I like videos. I like to see things visually. Yeah. Would you be able to text back if we said we’re sad or something, you could send a cute video or something. I don’t know—cute dog video or something.
	ID21: That’s a lot more relatable, yes. I think you should make it—I would say the happy faces, sad faces… I think that’d be cool, the numbers with emojis…I’m a more visual person. I don’t know if a lot of people are, but to me, that’d help me a lot is more visualizing things.