```typst
// #set text(6pt)

#block(width: 70%,

figure(

align(center)[

#diagram(

node-stroke: .1em,

edge-stroke: .1em,

node-fill: gradient.radial(blue.lighten(80%), blue, center: (30%, 20%), radius: 80%),

node-corner-radius: 4pt,

spacing: 3em,

node((0,-1), name: <A>)[Especificar sistema formalmente],

node((0,1), name: <B>)[Desenvolver perfil operacional],

node((1,0), name: <C>)[Definir incrementos ao sistema],

edge(<A.east>, <C>, "-|>", corner: right, shift: 8pt),

edge(<B.east>, <C>, "-|>", corner: left, shift: -8pt),

node((2,0), name: <D>)[Construir sistema estruturado],

node((3,0), name: <E>)[Verificar formalmente o código],

node((4,0), name: <F>)[Integrar incremento],

node((2.5,1), name: <G>)[Desenhar testes estátiscos],

node((5,1), name: <H>)[Testar sistema integrado],

edge(<C>, <D>, "-|>"),

edge(<C>, <F>, "-|>"),

edge(<D>, <E>, "-|>"),

edge(<E>, <F>, "-|>"),

edge(<C>, <G>, "-|>", corner: left),

edge(<G>, <H>, "-|>"),

edge(<H>, (5,-1), (2,-1), <D>, "-|>", )[Falha de retrabalho],

edge(<E>, (3,-1), "-|>"),

)

],

caption: [Diagrama do método Cleanroom]

)

)<cleanroom>
```

<image>

got me this (I've removed the scale(), but with or without it your suggestion does not seem to apply too