Soak the agar in the Bang at least over night, fridge is best
Simmer that mixture until agar dissolves.
Add erythritol and citric acid, simmer until dissolved.
Remove from heat. Pour into a shallow, clear or pale colored tray and add food coloring to aesthetic preference.
Pop in the fridge to set (around 6 hours)
Once set cut or break the gel into pieces and set on a foil or parchment lined cookie sheet to dry in a well-ventilated area for around 3-5 days.
Nutrition (per full goddamn giant batch) Agar: 9cal, 2.1g carbs/.3g fiber Erythritol: 0cal, 680g carbs/680g erythritol lol Bang: 0cal, 0carbs Citric Acid: 0cal 0carbs Food Coloring: varies by form
EDIT the flavor/texture seems like it would go nicely with added electrolytes next time, so I may do a small batch like that next time. They should end up like softer versions of the Gatorade chews.