#undef ZMK_LEADER_SEQUENCE
#define ZMK_LEADER_SEQUENCE(name, leader_bindings, leader_sequence) \
    / { \
        behaviors { \
            leader: leader { \
                compatible = "zmk,behavior-leader-key"; \
                #binding-cells = <0>; \
                leader_sequence_ ## name { \
                    bindings = <leader_bindings>; \
                    sequence = <leader_sequence>; \
                }; \
            }; \
        }; \
    };

/* German umlauts */
ZMK_LEADER_SEQUENCE(de_ae,      &de_ae,         A)  // ä
ZMK_LEADER_SEQUENCE(de_oe,      &de_oe,         O)  // ö
ZMK_LEADER_SEQUENCE(de_ue,      &de_ue,         U)  // ü
ZMK_LEADER_SEQUENCE(de_eszett,  &de_eszett,     S)  // ß

/* Greek letters */
ZMK_LEADER_SEQUENCE(el_alpha,   &el_alpha,      E A)  // α
ZMK_LEADER_SEQUENCE(el_beta,    &el_beta,       E B)  // β
ZMK_LEADER_SEQUENCE(el_gamma,   &el_gamma,      E G)  // γ
ZMK_LEADER_SEQUENCE(el_delta,   &el_delta,      E D)  // δ
ZMK_LEADER_SEQUENCE(el_epsilon, &el_epsilon,    E E)  // ε
ZMK_LEADER_SEQUENCE(el_zeta,    &el_zeta,       E Z)  // ζ
ZMK_LEADER_SEQUENCE(el_eta,     &el_eta,        E H)  // η
ZMK_LEADER_SEQUENCE(el_theta,   &el_theta,      E V)  // θ
ZMK_LEADER_SEQUENCE(el_iota,    &el_iota,       E I)  // ι
ZMK_LEADER_SEQUENCE(el_kappa,   &el_kappa,      E K)  // κ
ZMK_LEADER_SEQUENCE(el_lambda,  &el_lambda,     E L)  // λ
ZMK_LEADER_SEQUENCE(el_mu,      &el_mu,         E M)  // μ
ZMK_LEADER_SEQUENCE(el_nu,      &el_nu,         E N)  // ν
ZMK_LEADER_SEQUENCE(el_xi,      &el_xi,         E X)  // ξ
ZMK_LEADER_SEQUENCE(el_omikron, &el_omikron,    E O)  // ο
ZMK_LEADER_SEQUENCE(el_pi,      &el_pi,         E P)  // π
ZMK_LEADER_SEQUENCE(el_rho,     &el_rho,        E R)  // ρ
ZMK_LEADER_SEQUENCE(el_sigma,   &el_sigma,      E S)  // σ
ZMK_LEADER_SEQUENCE(el_tau,     &el_tau,        E T)  // τ
ZMK_LEADER_SEQUENCE(el_upsilon, &el_upsilon,    E U)  // υ
ZMK_LEADER_SEQUENCE(el_phi,     &el_phi,        E F)  // ϕ
ZMK_LEADER_SEQUENCE(el_chi,     &el_chi,        E C)  // χ
ZMK_LEADER_SEQUENCE(el_psi,     &el_psi,        E Y)  // ψ
ZMK_LEADER_SEQUENCE(el_omega,   &el_omega,      E W)  // ω