At Pyanodon Modpack the Railways are reseached first in "Railway 1" and normal Railway Research is disabled, so i can't research and build the bridges.
Can you please fix that?

Is this also a problem in the original Bridge mod? I am only limiting to straight pieces on water. All the other magic is copied from the original mod.

so, you should only add this to to data-updates.lua

-- technology
local techname = "railway"
if mods["pypostprocessing"] then
    techname = "railway-mk01"
end
table.insert(data.raw["technology"][techname].effects, {type = "unlock-recipe", recipe = "bbr-rail-wood"})
table.insert(data.raw["technology"][techname].effects, {type = "unlock-recipe", recipe = "bbr-rail-iron"})
table.insert(data.raw["technology"][techname].effects, {type = "unlock-recipe", recipe = "bbr-rail-brick"})

so, you should only add this to to data-updates.lua
-- technology local techname = "railway" if mods["pypostprocessing"] then techname = "railway-mk01" end table.insert(data.raw["technology"][techname].effects, {type = "unlock-recipe", recipe = "bbr-rail-wood"}) table.insert(data.raw["technology"][techname].effects, {type = "unlock-recipe", recipe = "bbr-rail-iron"}) table.insert(data.raw["technology"][techname].effects, {type = "unlock-recipe", recipe = "bbr-rail-brick"})

Code tested?

yes, I tested it on my modpack, the only thing I ask you to note is that in table.insert I replaced "railway" with techname, make sure that you did not leave it as it was.

if you are not sure, ask chatgpt :)

Forgive me, but when should we expect the changes to be applied? Of course, I installed the patch using this mod (where you can inject your code into the data stage), but this is all only locally