PainSled
Earlier work · sunset
PainSled opened indoor-rower data to general fitness services such as Strava and offered lightweight cycling emulation for experiences such as Zwift. It was an early expression of “work out the way you want.”
About ExerScreen
A musician’s ear. A fitness tinkerer’s workbench.
ExerScreen is a passion project led by James Terrell, a lifetime musician and fitness enthusiast who keeps wondering why exercise technology cannot flex a little more around real life.
Why keep at it?
Modern life is excellent at removing movement.
Work, entertainment, errands, and connection can all happen while barely leaving a chair. The challenge is not that people have never heard exercise is good for them. It is making movement easier to choose inside the lives they already have.
ExerScreen is a place to make a small dent in that problem: using music, familiar content, existing equipment, and open-ended experimentation to create more reasons to move.
It is intentionally presented at its real scale. This is not a full-time venture or a claim to have solved fitness. It is careful side-of-desk work by people with careers, families, and other responsibilities—shared because the questions are worth pursuing.
Project lineage
From open workout data to a broader invitation.
The apps have changed. The durable idea is that people should be able to work out in the way that makes sense to them.
RowedBiker
Earlier work · sunset
RowedBiker leaned further into the bridge, adapting cycling-app experiences around the particular effort and pacing needs of rowers. It marked the deepest point of ExerScreen’s rower-focused chapter.
BeatBiker
Public experiment
BeatBiker brings the same instinct to music-driven cycling: begin with something people already value, then let the workout and equipment meet it.
Explore BeatBikerFrankenTrainer
In the lab
FrankenTrainer turns the same question toward hardware: how can the equipment people already own become more adaptable and connected?
Visit the workshopThe through line
Start with what already motivates people. Make the fitness system adapt.
That principle is broad enough to outlast a device, platform, sport, or app—and specific enough to keep the next experiment honest.